Key for exam 2
( 1) C
( 2) C
( 3) B
( 4) B
( 5) A
( 6) A
( 7) D
( 8) B
( 9) B
(10) B
(11) C
(12) A
(13) C
(14) B
(15) C
(16) C
(17) C
(18) D
(19) C
(20) C