Provide the IUPAC name for the molecule with condensed formula: CH_(3)CH_(2)CH_(2)CH(CH_(2)CH_(3))CH(OH)CH_(3).

a) 3-methylhexan-2-ol
b) 4-methylhexan-2-ol
c) 4-methylheptan-2-ol
d) 3-methylheptan-2-ol