Which of the following statements are true? (i) if A→C and AB→C then B→C (ii) if A→ B and BC→D then AC →D

Which of the following statements are true?

(i) if A→C and AB→C then B→C
(ii) if A→ B and BC→D then AC →D

(A) True, true
(B) True, false
(C)False, true
(D)False, false

A
B
C
D
3Comments
Jatin Kumar @jatinkumar1 26 Jan 2019 12:17 pm
answer should be C
Jatin Khachane @JatinJK 26 Jan 2019 12:21 pm
answer should be C i think
example
A B C
1 5 2
3 10 5
6 10 7
here A-->C, AB-->C but B does not derive C
DIVYANSHU SAXENA @divarmaan 27 Jan 2019 05:22 pm
Yes It will be C