A Shenzhen taxi driver has turned over more than 300 gold necklaces worth more than 250,000 yuan that some careless passengers left in his car to his company. The driver, surnamed Yang, said he found a bag containing more than one kilogram of gold under a passenger's seat. He said he was "of course tempted" by the gold, but decided to do the right thing and reported it to his company right away.

How much gold has the taxi driver found?

A. 250 grams

B. 300 grams

C. 1,000 grams

（中國日報網英語點津 Helen 編輯）