Question:
Verizon Fios provides hundreds of channels to millions of viewers, because they want them to have a plethora of options to choose from.

Who is they referring to in this sentence?
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Answer:
Verizon Fios

Question:
Our professor told the TA that he needed his help.

Who is he referring to in this sentence?
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Answer:
Our professor

Question:
Mary asked Jim not to annoy the crazy person, as he might attack him.

Who is he referring to in this sentence?
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Answer:
the crazy person

Question:
Lucy gave a tutorial on how to install IOS 5 to Cindy since she is familiar with software upgrades.

Who is she referring to in this sentence?
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Answer:
Lucy