The answer is C.a significant increase in gun-related violence
Answer:
cross-sectional
Explanation:
cross-sectional study is a kind of study which investigate variables through analyzed the data collected in one specific time for a population. In this study, sample of participants are the same in all variables except one.
in the mentioned research, changing variable is age.
Answer:Though new laws making it more difficult for them to operate freely, and with U.S. foreign aid. hope it helps in someway ig idk
Explanation: