单项选择题

B   Cars!!! Holidays! Thousands of prizes ! Hurry !   FREE with every packet of SPLASH! Your personal lucky number!   Will be among the 500,000 Winners!   Use SPLASH for the SOFTEST …   QIUCKEST…WHITEST WASH!   DON’T DELAY … BUY A PACKET TODAY! This is __________.

A.an introduction to some products
B.An advertisement for selling goods
C.a direction of a kind of washing machine
D.A notice about a football game