Determine the correctness or otherwise of the following $Assertion$ (a) and $Reason$ (r).

$Assertion:$ Cell mass yield of a methylotrophic yeast is more on methanol compared to glucose.

$Reason:$ Methanol has a greater degree of reductance compared to glucose.

1. Both (a) and (r) are correct and (r) is the correct reason for (a)
2. (a) is correct, (r) is false
3. (a) is false, (r) is correct
4. Both (a) and (r) are correct but (r) is not the correct reason for (a)