Which of the following corrects the pronoun error in this passage? the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. it made them happy. a. the sixth-grade students liked volunteering his or her time to read to the elderly people in the hospital. it made them happy. b. the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. it made the volunteers happy. c. the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. they made them happy. d. the sixth-grade students liked volunteering their time to read to the elderly people in the hospital. reading made them happy.

The best choice is B) it made the volunteers happy. 
The first sentence is correct, so A is wrong. 

The error in the second sentence is that we don't know who "them" refers to. It (reading to the elderly) made "them" happy, but who is them? The volunteers or the elderly people?  
B) clarifies this point by saying that it made the volunteers happy. 

The answer would be d. hope this .

Era o zi ploioasa. eram la scoala iar un om impartea bilete pentru un circ, bineinteles ca am luat si eu unul. pe bilet scria ca circul va avea loc chiar maine la ora 15: 00, iar intrarea costa 15 lei. eram nerabdatoare sa merg.a doua zi am ajuns, mi-am platit biletul, mi-am luat o vata de zahar si am luat loc sa asist spectacolul. totul se desfasura frumos, claunii dansau, era totul amuzant. se intamplase ca, un sarpe sa scape din cusca sa, si sa vina spre public, ce a urmat mai departe a fost intradevar comic. toti oamenii s-au speriat si s-au urcat pe scaune, urland cat ii tineau plamanii, dar sarpele venise doar sa ia o bucata de popcorn de jos sa o manance, iar apoi a inceput sa faca scamatorii. a fost totul atat de amuzant, deoarece oamenii erau speriati iar sarpele  nu avea nici o vina.spectacolul s-a terminat iar eu am mers acasa si le-am povestit parintilor mei, care si ei la randul lor, au ras cu pofta.