Answer asap! an explanation is a must requirement in order to receive points and the brainliest answer. you.

Hmm

tr some
m=3
n=4
p=5
q=6
A=m/q=3/6=1/2=0.5
B=n/p=4/5=0.8

test
first,
A+B, andB is irrational
hmm, B is not irrational and the result is not irrational

2nd
0.5+0.8=1.3, it is rational

3rd the fraction is wrong
m/q times n/p=(mn)/(qp) so this is wrong

4th, fraction is also wrong (but it is true that produce of 2 rationals makes rational)

pick 2nd from top

A. is the answer in this question