The prayers went out as a protest and boycotted the game. (Corrected it.)
The prayers (subject) did two things:
1: went out as a protest (predicate)
and
2: boycotted the game (predicate)
Remember to use the same tense.
An example of this could be shown in an email to the city’s head of the local electric power plant to persuade them to place more streetlights on a specific side of town.
Answer:
Who:Who are you?
What:What is an earthquake?
Which:Which side won?
That:He spoke so well that everybody was pleased.
Whom:She saw a lady whom she presumed worked at the store, and she asked her a question.
Whomever:Harry should give the award to whomever he thinks deserves it.
Whoever:Whoever he was, he was as strong as a lion.