What is the IUPAC name of the compound whose structure is shown below?
$\table , , H, , CH_3, , H, , ; , , ∣, , ∣, , ∣, ,; H, -, C, -, C, -, C, -, H; , , ∣, , ∣, , ∣, ,; , , H, , CH_3, , H;$

• A.1, 2 Methyl pentane
• B.2, 3 Dimethylpropane
• C.2, 2 Dimethylpropane
• D.1, 2 Dimethylpropane