Sentence Correction

Modern historians have challenged the common belief that suicide rates soared after the Great Wall Street Crash of 1929 by presenting various pieces of evidence, out of which the most interesting, arguably, is that the number of suicide cases per 100,000 people in 1928, a year before the Great Crash, already amounted to a sum of 17, only one less than the same number in 1929.

A. out of which the most interesting, arguably, is that the number of suicide cases per 100,000 people in 1928, a year before the Great Crash, already amounted to a sum of 17

B. out of whom the most interesting, arguably, is that the number of suicide cases per 100,000 people in 1928, a year before the Great Crash, already amounted to 17

C. out of which the most interesting, arguably, is that the number of suicide cases per 100,000 people in 1928, a year before the Great Crash, already amounted to 17

D. out of which the most interesting argument is that the number of suicide cases per 100,000 people in 1928, a year before the Great Crash, already amounted to a sum of 17

E. out of which the most interesting, arguably, is that the number of suicide cases per 100,000 people in 1928, a year before the Great Crash, already amounted to 17 suicide cases

OA C

Source: Economist Gmat