If $h^{\prime}$ Is a Child's Rate of Growth in Pounds Per Year

Multiple Choice

If $h^{\prime}$ is a child's rate of growth in pounds per year, which of the following expressions represents the increase in the child's weight (in pounds) between the years 2 and 5 ?

A) $\int_{2}^{5} h^{t}(t) d t$
B) $h^{\prime}(5) -h^{\prime}(2)$
C) $\int_{5}^{2} h(t) d t$