comparative form of these adverbs and adjectives

What is the comparative form of these adverbs and adjectives?




big
a)biger
b)bigger
c)more big


expensive
a)expensive
b)expensiveer
c)more expensive


red
a)reder
b)redder
c) more red


tall
a)taller
b)taler
c)more tall


intelligent
a)intelligenter
b)intelligentier
c)more intelligent


stupid
a)stupider
b)stupidder
c)more stupid


lazy
a)lazyer
b)lazier
c)more lazy


good
a)gooder
b)better
c)more good


bad
a)badder
b)worse
c)more


badslowly
a)slowlyer
b)slowlier
c)more slowly


little
a)littler
b)less
c)more little


fast(adjective)
a)faster
b)fastlier
c)more fast


fast (adverb)
a)faster
b)fastlier
c)more


fastshort
a)shorter
b)shortier
c)more short


happy
a)happyer
b)happier
c)more happy


beautiful
a)beautifuler
b)beautifuller
c)more beautiful