Draw the structure of 2,2,4-trimethylhexane and indicate how many each of the `1^@, 2^@, 3^@` and `4^@` carbons does it contain ?

2,2,3-trimethyl pentane

2,3,4-trimethyl pentane

both (a) and (b)

none of the above

2, 3-dimethylpentane

2,3,3-trimethylpentane

2,3,4-trimethylpentane

3,3-dimethylpentane

`{:(" "CH_(3)""CH_(3)),(" |"" |"),(CH_(3)-C-CH-CH_(2)-CH_(3)),(" |"),(" "CH_(3)):}`

`{:(" "CH_(3)" "CH_(3)),(" |"" |"),(CH_(3)-C-CH_(2)-CH-CH_(3)),(" |"),(" "CH_(3)):}`

`{:(" "CH_(3)""CH_(3)),(" |"" |"),(CH_(3)-C-CH-CH_(2)-CH_(2)-CH_(3)),(" |"),(" "CH_(3)):}`

`{:(" "CH_(3)),(" |"),(CH_(3)-CH-CH_(2)-CH_(2)-C-CH_(3)),(" |"" |"),(" "CH_(3)" "CH_(3)):}`