i have a doubt

[michaelvpm]

In the affirmative sentence which is the correct one:
1 how a man can change
2 like a man can change
3 as a man can change
Which is the correct adverb to use..how,like or as?

[Vlad_the_Inhaler]

In the affirmative sentence which is the correct one:
1 how a man can change
2 like a man can change
3 as a man can change
Which is the correct adverb to use..how,like or as?

2 and 3 are correct