How do you round the number 3.76 to the nearest whole number?

To round the number 3.76 to the nearest whole number, you focus on the digit in the tenths place, which is the first digit to the right of the decimal point. In this case, the tenths digit is 7. According to the rules of rounding, if this digit is 5 or greater, you round up the whole number part by one. Since 7 is greater than 5, you round up from 3 to 4. Therefore, rounding 3.76 results in the whole number 4, making it the correct answer.

Rounding is simply a way to simplify numbers while keeping them as close to the original value as possible, which is why looking at the digits immediately following the decimal point is crucial in this process.