Which of These Activities Would Most Likely Fall Under the Responsibilities

Multiple Choice

Which of these activities would most likely fall under the responsibilities of a macroeconomist?

A) whether the availability of e-books is affecting the sales of traditional printed books
B) how a winning season by a professional sports team affects ticket prices
C) studying economic indicators such as the consumer price index
D) the effect of coupons on consumers' buying behavior
E) how a local business allocates its funds to various departments