(A) that all of the thousands of languages spoken by the worlds five billion people can be traced
(B) that the worlds five billion people speak thousands of languages of which all can be traced
(C) the worlds five billion people speak thousands of languages which are all traceable
(D) all of the thousands of languages spoken by the worlds five billion people to be traceable
(E) the ability to trace all of the thousands of languages that are spoken by the worlds five billion people
Solution:
Idiom*
Contend + that is the correct usage.
Hence, C, D, and E can be eliminated.
B is indirect and awkward.
A is the best choice
Sentence Correction - 1000 Questions with Solution: