Find the synonym of the underlined word. The speaker demonstrated her knowledge of the subject by an excellent speech.
A
Corrected
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B
Created
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C
Repeated
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D
Showed
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E
Proved
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Solution
The correct option is C Showed
'Demonstrate' means to clearly show the existence or truth of (something) by giving proof or evidence.
"their shameful silence demonstrates their ineptitude"
In this context, the speaker demonstrated her knowledge means that she showed her knowledge of the subject. Hence, option D is correct and the others are not.