Is the following alkane incorrectly named? If yes, what is its correct name? Explain.

It is correctly named because it takes into account the correct prefix and position of the substituents, as well as the correct name of the parent chain.

It is incorrectly named because it does not include the prefix of the substituents. Its correct name is 3,3-dimethylhexane.

It is incorrectly named because the substituents are assigned the wrong position. Its correct name is 2,2-methylhexane.

It is incorrectly named because it provided the wrong name of the parent chain. Its correct name is 3,3-methylheptane.