When is the giver called to advise the elders?
the giver book

From the text:

Some years ago," The Giver told him, "before your birth, a lot of citizens petitioned the Committee of the Elders. They wanted to increase the rate of births. They wanted each Birthmother to be assigned four births instead of three, so the population would increase and there would be more Laborers available."

"The Committee of the Elders sought my advice," The Giver said. "It made sense to them too, but it was a new idea, and they came to me for wisdom.

The Giver is called to advise the community of Elders when they need his help in decision making. He can refer back to the memories and help them come to the best decision based on their memories.

Explanation:

“a committee reviews the bill and marks it up to make it more viable and to reflect interests 

c, because the american revolution was from 1765 to 1783.