Cloud Native services are architected using principles that leverage the capabilities of cloud computing. A core characteristic is the use of microservices, which break down applications into small, independent, and lightweight components. This modularity, combined with automation practices like Continuous Integration/Continuous Delivery (CI/CD), enables very fast and frequent deployments. These two attributes—being lightweight and rapidly deployable—are fundamental to the agility and efficiency of the Cloud Native model.

A. Low Scalability: Cloud Native applications are designed for high, elastic scalability, allowing them to dynamically adjust to demand, which is the opposite of low scalability.

C. Fixed capacity: This contradicts the core cloud principle of elasticity. Cloud Native services are designed to scale resources up or down on-demand, not operate with a fixed capacity.

1. Nokia Official Documentation: In the Nokia white paper, "The 5G core: A cloud native approach for a new 5G era," it is stated, "A cloud native architecture... enables new levels of automation and agility... This agility allows CSPs to deploy and scale services in minutes rather than months." This directly supports the characteristic of very fast deployment (D). The paper also extensively discusses the microservices-based architecture, which underpins the concept of lightweight applications (B). (Reference: Nokia White Paper, "The 5G core: A cloud native approach for a new 5G era", Page 4, Section: "Cloud native: The foundation for the 5G era").

2. Academic Publication: Pahl, C., & Jamshidi, P. (2016). "Microservices: A Systematic Mapping Study." In 10th International Conference on Service-Oriented Computing and Applications (SOCA). The study identifies key characteristics of microservices, a foundational element of cloud-native design, including "small size" and "independent deployment." These directly correspond to being lightweight (B) and enabling fast deployment (D). (DOI: 10.1109/SOCA.2016.32, Section III-A, "Characteristics of Microservices").

3. Foundational Definition (Industry Standard): The Cloud Native Computing Foundation (CNCF) Charter defines the approach. It states, "Cloud native technologies empower organizations to build and run scalable applications... Containers, service meshes, microservices, immutable infrastructure, and declarative APIs exemplify this approach." Microservices and containers lead to lightweight applications (B), and the overall goal of empowering organizations to "build and run" applications in dynamic environments implies the need for very fast deployment (D). (Source: CNCF Charter v1.0, Section: "Definition of Cloud Native Computing").