QUES:
Who is they in the following sentence?

Western Digital may disappoint their shareholders this season, but they will probably tough out the momentary losses and remain shareholders.

ANS:
their shareholders

QUES:
Who is they in the following sentence?

Bioware recently announced a stress test to beta users this weekend since they need to see the performance of their servers.

ANS:
Bioware

QUES:
Who is he in the following sentence?

John remembered Bill because he was memorable.

ANS:
Bill