What built-in function can be used to iterate over a range of numbers?

• A. loop()
• B. range()
• C. sequence()
• D. iterate()

Answer: (B)

The built-in function that can be used to iterate over a range of numbers is the range() function. This function generates a sequence of numbers, which is particularly useful in for-loops to control the number of iterations.

When you call range() with one, two, or three parameters, it produces a range object that represents a series of numbers. For example, range(5) will create a sequence of numbers from 0 to 4.

This function allows you to efficiently create lists of numbers without having to manually define each number. Since it generates numbers on demand (using a generator), it is memory-efficient as well.

To iterate over these numbers in a for-loop, you can simply use the syntax for i in range(5): which will iterate from 0 to 4, executing the loop body for each value of i.

The other options do not correspond to any built-in Python functions that facilitate the iteration over a range of numbers. Thus, range() is the correct answer because it is specifically designed for this purpose.