What is a multiple of 7 that is greater than 28?

A multiple of 7 is any integer that can be expressed as 7 times another integer. The multiples of 7 are: 7, 14, 21, 28, 35, 42, and so forth. To find a multiple of 7 that is greater than 28, we look at the multiples listed.

In this case, 35 is the next multiple of 7 after 28, as it can be calculated as 7 times 5 (7 x 5 = 35). Since 35 is clearly larger than 28 and fits the criteria of being a multiple of 7, it is the correct answer.

The other options either do not meet the criteria of being greater than 28 or are not multiples of 7 that exceed this threshold. Therefore, 35 is the only correct choice that meets the requirement of being a multiple of 7 and greater than 28.