signature of the following function

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter6: User-defined Functions
Section: Chapter Questions
Problem 38SA
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Which of the options is the signature of the following function?

(define (quadruple input-number)

(* 4 input-number))

 

A) QUADRUPLE: input-number -> (* 4 input-number)

B)  QUADRUPLE: Number -> Number

C)  quadruple: input-number -> (* 4 input-number)

D)  quadruple: input-number -> Number

E)  quadruple: Number -> Number

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