Answer:
C. We gave the toys away to children when we were done.
Step-by-step explanation:
According to the given excerpt, a student wrote a letter searching for internship at a Power Station and attached to the letter was a paragraph that listed her achievements which showed her competency and reliability.
However, the detail that should be removed from the paragraph is the detail about giving away toys to children when they were done with their experiment.. This is because, this is not related to her search for internship and as a result is unnecessary.