Series: 191, 276, 366, 461, 561, 666, 776.

A = n^{th }term and B = (n + 1)^{th }term

Based on above logic, which of the following option is true?

I: B = A + (80 + 5, 10, 15, 20,....)

II. (B - A) is divisible by 16.

III: Difference between B and A is multiple of 80.

1. Only I

2. All three I, II and III

3. Only II

4. Only III

5. Both I and III