The Maximum Length of a Certain Type of Fish Is $D = 57 \times 0.86 ^ { t }$

Multiple Choice

The maximum length of a certain type of fish is 60 centimeters. The difference between the maximum length and the length at age years is given by $D = 57 \times 0.86 ^ { t }$ centimeters. Write a formula
That gives the length L , in centimeters, of the fish at age years.

A) $L = 60 + 57 \times 0.86 ^ { t }$
B) $L = 60 - 57 \times 0.86 ^ { t}$
C) $L = 60 \times 57 \times 0.86 ^ { t }$
D) $L = 57 \times 0.86 ^ { t} - 60$