Read the section "Scientists Track Head Hits To Get Answers." Which sentence explains WHY scientists put sensors in football
players’ helmets?

Group of answer choices

From this, the team could tell how many times each kid’s head had been hit.
Concussions can lead to headaches, dizziness and forgetfulness.
About one in four kids had played football at least two years in a row.
The scientists teamed up with 195 boys who played football.