Question

Name the scientist who invented helicopter ?
A) None of these
B) Both A & B
C) Broquet
D) Igor Sikorsky​

Answer 1

Answer:

${ \boxed{ \tt{ \huge{ \purple{D) Igor \: Sikorsky}}}}}$

Name the scientist who invented helicopter ?

A) None of these

B) Both A & B

C) Broquet

D) Igor Sikorsky

Explanation:

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