A summary with statistics, conclusions, and recommendations from the data analyst is the best way

to communicate the results of an online marketing campaign to the marketing manager. A summary

can provide a concise and clear overview of the most important KPIs and measure the return on

marketing investment, as well as highlight the main findings and insights from the data analysis. A

summary can also include actionable suggestions and best practices for improving the campaign

performance and achieving the marketing objectives. A summary is different from other options,

such as a real-time monitor, a self-service dashboard, or a spreadsheet of raw data, which may not

provide enough context, interpretation, or guidance for the manager. Therefore, the correct answer

is D. Reference: How to Write a Data Analysis Report: 6 Essential Tips, How to Write a Marketing

Report (with Pictures) - wikiHow