Answer:
(e) continued to pour money into the stock market in the belief that the american economy was
Explanation:
(a) continue pouring money into the stock market, believing that the American economy was
(b) continue pouring money into the stock market, believing in the American economy as
(c) still continue pouring money into the stock market in the belief that the American economy as
A, B and C: Analysts were surprised that,.... investors continue
It is not possible that analysts were surprised i.e. (In the Past) with regard to an action happening now (investors continue).
(d) still continued pouring money into the stock market, believing in the American economy as
Still continued is not proper as A still does B means A continues to do B.
Thus in D, still continued is redundant.
Hence, E is the right answer
(e) continued to pour money into the stock market in the belief that the american economy was