Question

Shrinking faster than any other nation's, the projected decline of Japan's population is 17 percent during the next half century.

(A) Shrinking faster than any other nation’s, the projected decline of Japan’s population is
(B) Shrinking faster than any other nation, Japan’s population has a projected decline of
(C) The population of Japan is shrinking faster than that of any other nation and is projected to decline by
(D) The Japanese population is shrinking faster than any other nation, and it has a projected decline at
(E) Japan’s population is shrinking faster than that of any other nation, with a projected decline at

Answer 1

C is correct.

Explanation:

E has idiomatic issue: "decline at" is wrong. Also another major issue is lack of parallelism:

Japan’s population is shrinking faster than that of any other nation, with a projected decline at

Portion underlined is not parallel. First is a possessive noun, and second is not. So although the comparison is not an issue, parallelism is not maintained. So E is wrong.