The IF function is a fundamental logical function in Microsoft Excel used for decision-making. It performs a logical test on a condition you specify. Based on the outcome of this test, it returns one of two possible values. If the condition evaluates to TRUE, the function returns the first specified value (valueiftrue); if the condition evaluates to FALSE, it returns the second specified value (valueiffalse). Its syntax is IF(logicaltest, valueiftrue, valueiffalse).

A. The NOW() and TODAY() functions are used to display the current date and time, not the IF function.

B. The ROUND() function and its variations (ROUNDUP, ROUNDDOWN) are used for rounding numbers, not the IF function.

D. Inserting a picture is a feature accessed via the 'Insert' tab or, in newer versions, the IMAGE function, not the IF function.

1. Microsoft Corporation. (n.d.). IF function. Microsoft 365 Support. Retrieved from https://support.microsoft.com/en-us/office/if-function-69aed7c9-4e8a-4755-a9bc-aa8bbff73be2.

Reference Point: The "Description" section states

"The IF function... allows you to make logical comparisons between a value and what you expect. So an IF statement can have two results. The first result is if your comparison is True

the second if your comparison is False."

2. MIT Libraries. (n.d.). Excel 2016: The Basics - Logical Functions. MIT LibGuides. Retrieved from https://libguides.mit.edu/c.php?g=175963&p=1159043.

Reference Point: Under the "Logical Functions" heading

the guide describes the IF function: "The IF function returns one value if a condition you specify evaluates to TRUE

and another value if that condition evaluates to FALSE."

3. University of Wisconsin-Madison. (n.d.). Excel - The IF Function. UW-Madison KnowledgeBase. Retrieved from https://kb.wisc.edu/showcase/page.php?id=2545.

Reference Point: The introductory paragraph states

"The IF function allows you to test a condition and returns a specific value if the condition is TRUE

or another value if the condition is FALSE."