The usage of “花 (huā)”

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The right answer is

A

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Translation:

             Lǎobǎn, zhè shù huār duōshao qián? Li Hua：老板，   这   束    花儿      多少    钱？ How much does this bunch of flowers cost?              Wǔshí kuài qián. Seller：五十      块   钱。 Fifty Yuan. Tài guì le! Li Hua：太  贵  了！ That’s too …