In English all the prefixes are______morphemes.

A．This is the biggest takeover battle for China.
B．China’s bid will probably trigger a costly biding competition over the company Unacal.
C．The US is planning forbidding Chinese company’ s bids for US company.
D．Unocal has agreed to be sold to another American oil company.

A．manners
B．talkativeness
C．height
D．jewelry