单选题 Launch schedule
24/5 - Press conference.
31/5 - TV advertising starts. Distribute posters.
7/6 - Deliver leaflets. Radio advertising starts.
14/6 - Free competition starts on the radio.
How many written forms of publicity are there?

A、 two
B、 three
C、 four

【正确答案】 A

【答案解析】题干意为：“以书面形式作宣传的有几种?”，题中有海报和小册子两种。