Macroecon frq help.

<p><a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>Supporting Students from Day One to Exam Day – AP Central | College Board;

<p>Can anyone explain letter d for the first question?</p>

<p>Also for letter c, is it indeterminate because we are unsure how much the value rate increased in proportion to inflation? thanks.</p>