Which sentence uses a verb that agrees with its compound subject? a. basketball and handball is played on hard courts. b. baseball or soccer are my sister's favorite sport. c. subways and buses carry passengers in many cities. d. maples and oaks drops their leaves in the fall.

The answer is C.

Subways and buses is proper, so as in many places.

The  sentence that uses a verb that agrees with its compound subject is:(C) Subways and buses carry passengers in many cities.

In this compound sentence  something that these means of transport regularly do it´s described. The subjetcs (subways and buses) agrees with the verb (carry).

" the king sits next to a crown , which symbolizes his power" is   correct   the king is standing on his feet wearing expensive clothing next to the crown.

"the king is wearing elaborate clothing." is correct. this is a symbol of wealth and   royal power.

the king is not dressed like a soldier but like a monarch.

"the king has a sword but he   sits next to a helmet" is correct.

the king is not sitting on the floor.