请选择CBA4i2e4_:S3a.X9?7i3F5G How ______ horses are there in your farm?,S'~8V7X5A7w;F/b
A. much,S'~8V7X5A7w;F/b
B. about,S'~8V7X5A7w;F/b
C. many,S'~8V7X5A7w;F/b