Hello everyone, i'm confused on what the answer is here, it looks like he circled every answer but i dont see how thats possible. So maybe he cirlced c and b and marked a and b wrong. How would I test to verify that c and d are correct? if b1 = 3, b2 = 6 and b_n = b_n-1 + b_n=2 for all integgers n >= 3. n has to be >= 1, so do I plug in n = 1, n = 2, and n = 3? like n = 1, so b_n = b_0 + b_n-1 But b_0 and b_n-1 isn't even listed so im not sure where to go from this.