Question

Which statement assigns numCars with a number from input?

A) scanf("%d", "numCars");
B) scanf("%d" &numCars);
C) scanf("%d", numCars);
D) scanf("%d", &numCars);
1) Type a statement that gets an input value into variable numUsers.

Answer 1

The correct statement to assign numCars with a number from input is D) scanf("%d", &numCars); because you need to pass the address of the variable to scanf in C. To input a value for numUsers, the statement is scanf("%d", &numUsers);.

Step-by-step explanation:

The correct statement to assign numCars with a number from input in C is option D) scanf("%d", &numCars). This is because scanf is a function used to read formatted input from the standard input stream in C.

In the format string %d, d signifies that you are expecting an integer. The ampersand & is necessary before the variable name to pass the address of numCars so that scanf can store the input value at that memory location.

To answer the second part of the question: To get an input value into the variable numUsers, the statement would be scanf("%d", &numUsers);.