Which of the Following Is (Are) Included in Investment

Multiple Choice

Which of the following is (are) included in investment?
(i) military spending
(ii) the purchase of an aircraft by a domestic airline
(iii) the purchase of $45,000 worth of bonds
(iv) the purchase of $32,000 worth of stock
(v) social security payments
(vi) the construction of a highway by the federal government

A) (i) , (ii) , (v) , and (vi)
B) (ii) , (iii) , and (iv)
C) (ii) only
D) (i) and (vi)