Let lst = '(1 2 3 4 5). The function check-1? returns #t only if the input list contains 1, the function check-2? returns #t only if the input list contains 2, the function check-3? returns #t only if the input list contains 3, and the function check-4? returns #t only if the input list contains 4. What will be the following expression display: (cond ((check-1? lst) (display '1)) ((check-2? lst) (display '2)) ((check-3? lst) (display '3)) ((check-4? lst) (display '4)) (else (display '5)) ) a.1234 b.54321 c.15 d.1 e.12345

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Let lst = '(1 2 3 4 5). The function check-1? returns #t only if the input list contains 1, the function check-2? returns #t only if the input list contains 2, the function check-3? returns #t only if the input list contains 3, and the function check-4? returns #t only if the input list contains 4. What will be the following expression display:

(cond

((check-1? lst) (display '1))

((check-2? lst) (display '2))

((check-3? lst) (display '3))

((check-4? lst) (display '4))

(else (display '5))

)

a.1234

b.54321

c.15

d.1

e.12345

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