Joke Collection Website - Bulletin headlines - One of the following slogans is () (3 points) A. A slogan is posted at the door of a library: the economy is developing and the population is declining.

One of the following slogans is () (3 points) A. A slogan is posted at the door of a library: the economy is developing and the population is declining.

C

This question examines students' ability to use punctuation marks. A. A slogan is posted at the door of a library: The economy has developed and the population has declined. B in front of a park, it says: foreigners, please register at the concierge. D. The wall of an institution reads: Spring grass wakes up, please go around!