Answer:
4 )Young people are able to join the armed forces and drive from the age of 16.
Explanation:
Answer:
it's C because it has the commas placed at correct areas.
the rest of the sentences can be corrected below :-
a. Spider man, who is known for being able to shoot webs from his wrists, is my favourite hero.
b. The children, who were usually happy, had become upset.
d. Peter, who is my best friend, plays the guitar and the piano. hope it helps...
A compound sentence consists of two or more independent clauses joined with a comma and coordinating conjunction . C