Identify whether the following uses parallel structure and why. "Jacob thought that the book was exciting, challenging, and too long."

PLEASE HELP ME
THANK YOU!!
:D

recent brain research has shown some surprising benefits as a result of formal musical training. learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. the studies indicate that the earlier a child begins training, the more benefits there are. one such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. scientists believe there is mounting evidence to show that early musical training can improve brain function.

explanation:

what are the choises i cant answer without choises

elie wiesel is a holocaust survivor

explanation: