What's 8/100 and 4/100 and 65/100 and 28/100 and 78/100 and 96/100 and 50/100 in simplest form

In order to get the simplest form of a fraction, you just have to find a common number that can be divided by both the numerator and the denominator. So for these questions, the simplest form of 8/100 is 4/5. The simplest form of 4/100 is 1/25. The simplest form of 65/100 is 13/20. The simplest form of 28/100 is 7/25. The simplest form of 78/100 is 39/50. The simplest form of 24/25. And lastly, the simplest form of 50/100 is 1/2. Those are the answers to each question/ 

Iam guessing c. or d.