The table below shows four problems using decimals.

Problem Number
Problem
1
How many grams are in 2.3 kilograms? Recall that there are 1000 grams in a kilogram.
2
How many 85-cent nutrition bars can Mary buy for $20.00?
3
How many quarts does Mike have to buy for a recipe that calls for 13.7 cups? Recall that there are 4 cups in a quart.
4
How many days will a trip take if it takes 152.45 hours? Recall that there are 24 hours in a day.

Which problem would be solved using multiplication, and what is the solution to the problem?
A: Problem 1 requires multiplication. There are 2300 grams in 2.3 kilograms.
B: Problem 2 requires multiplication. Mary can buy 23 nutrition bars.
C: Problem 3 requires multiplication. Mike has to buy 54.8 quarts for the recipe.
D: Problem 4 requires multiplication. The trip will take 3658.8 days.