If A(t) Denotes the Annual Rate of World Consumption of Oil

Multiple Choice

If A(t) denotes the annual rate of world consumption of oil at time t (with t = 0 corresponding to 1977) , which of the following expressions represents the amount of oil consumed between 1977 and 1987?

A) A'(10)
B) $\int _ { 0 } ^ { 10 } A ^ { \prime } ( t ) d t$
C)
D) $\int _ { 0 } ^ { 10 } \mathrm {~A} ( \mathrm { t } ) \mathrm { dt }$
E) none of these