6. From 1 cent, 2 cents, and 5 cents 3 types of coins, take out 100 coins, totaling 3 yuan. The possible number of 2 cent coins is ( ) types.
(A) 13
(B) 16
(C) 17
(D) 19
6.
(C)



Translate the text above into English, please retain the original text's line breaks and format, and output the translation result directly.