im not sure but I think it is b
Short answer: No
Explanation: if you bring the fractions down as low as possible, the first bag has a 1 in 4 chance of getting a red marble. The 2nd bag can't be brought down anymore because 26 and 7 do not share any common divisors.

Step 1:

Step 2:

On comparing values we get:
Taking:

n-5=0
n=5✓
or
Taking:

n-4=1
n=5✓