Data Sufficiency - intergers

[shanthissv]

If A Is positive integer; is A+17,283 is odd

1. A -192,489,358,935 is odd
2. A/4 is not an even integers

Answer: A

I guess "D"


Anyone has explanation....

[mschwrtz]

If A Is positive integer; is A+17,283 is odd
rephrase as Does A+odd=odd? or simply as Is A even?

1. A -192,489,358,935 is odd
Rephrase as A-odd=odd or simply as A is even.
Sufficient, eliminate BCE

2. A/4 is not an even integers
Rephrase as A is not divisible by 8.
Not sufficient, some numbers not divisible by 8 are even, and others are not.
Answer A