Why did the kids protest at Tiananmen Square?

In Hong Kong, the Tiananmen square protests led to fears that China would renege on its commitments under one country, two systems following the impending handover of Hong Kong from the United Kingdom in 1997.

the correct answer is d

a conference committee is a group of congress representatives appointed by the senate and the house to reach an agreement over a bill that had different versions in each chamber. this is due to the fact that, to pass a law. both the house and the senate must agree on the exact same content and wording of the bill to present it to the president.

i believe it's that they cared for people. hope this ! : )