Answer
Model $A$ predicts the lower price, of about $0.2 $ cents/gigabyte.
Work Step by Step
In 2020, $t=20$, and we find
$A(20)\approx 0.002$
$D(20)\approx 0.078$
(dollars/gigabyte)
so, model $A$ predicts the lower price, of about $0.2 $ cents/gigabyte.
