There is in population that a food shortage is caused.A. so rapid an increaseB. such rapi

问题补充：

There is in population that a food shortage is caused.

A. so rapid an increase

B. such rapid an increase

C. such rapid increase

D. so a rapid increase

答案：

(答案→)A. so rapid an increase

B. such rapid an increase

C. such rapid increase

D. so a rapid increase

解析：这题考查so、such的区别，so+adj+a/an+名词，such+a/an+adj+名词，句意是:人口增长是如此快以至于食品短缺也造成了。选A。