Which of the following parts must be removed prior to replacing the left speaker of the MacBook Air (11-inch, Mid 2013)? SELECT THREE.

A.
Right speaker

B.
Bottom case

C.
Battery

D.
Logic board

E.
I/O Flex cable

F.
Display clamshell

G.
Input device (IPD) flex cable

Explanation:
https://www.ifixit.com/Guide/MacBook+Air+13- Inch+Mid+2013+Left+Speaker+Replacement/15233