Choose the correct answer A, B, C, D to complete the sentences

Class 7A1 has_____________ students than class 7A2
A. much          B.many.          C. a lot.        D.more​​
John is________ than David 
A.clever.         B.more cleverer.      C.clever than.     D.cleverer than
The weather today  is ___________ it was yesterday 
A.bad than.       B.bader than.     C.worse than.       D.worst than