BMAT question on genotypes & phenotypes

I had some doubt here, would Bb and bB be considered 1 genotype or 2? Thank you.

That makes sense, about there not being a 4:2 option. Thank you!

Hi, Could you please explain how did you get this ?

Hi, you just need to count the genotypes and phenotypes after crossing two heterozygotes.

Got it. Thank you very much