IN:
Multi-choice problem: [it]

A monkey ate a lizard and it licked its lips.

OUT:
A monkey

IN:
Multi-choice problem: [they]

Apple sued Samsung because they felt their intellectual properties were being infringed upon.

OUT:
Apple

IN:
Multi-choice problem: [they]

The band loves their fans because they cannot exist without support.

OUT:
The band

IN:
Multi-choice problem: [it]

The bird perched on the limb and it sang.

OUT:
The bird