Kannn wrote:
To this day, researchers and theorists debate whether bubonic plague caused The Black Death, a pandemic that swept the world in the middle of the fourteenth century.
a) whether
b) whether or not
c) about whether
d) as to whether
e) if
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B and E are obviously wrong.
What is wrong with C & D?
Explanation says that,
(C) "About whether" is both redundant and awkward.
(D) "As to whether" is both redundant and awkward.
What is redundant here? Isn't 'debate about' correct idiom?
Can experts help please?
Thanks
"Debate about" is not the correct idiom and is redundant. You are going to debate "a topic"; you don't need to say the you are going to debate "about a topic". You just launch right into the word "whether" after "debate.
For example, "We will debate whether solar energy is feasible."