Hey there!
I believe answer is B2 or Beta 2
His work, which was documented and repeatable, contradicted the accepted cell theory, so a change in the theory was required.
Carbohydrates are sugars that come in 2 main forms - simple and complex. This is also referred to as simple sugars and starches. The difference between a simple and complex carb is in how quickly it is digested and absorbed - as well as it's chemical structure.
