Definition: You are given a question on high school macroeconomics. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: GDP measures
(A)production within a nation's borders. (B)production by a nation's citizens wherever they may be. (C)income earned by the factors of production plus depreciation and indirect business taxes. (D)(A) and (C)

D