Need organic chemistry help...what is the stereogenic center of 1,1,2-trimethylcyclobutane

can someone please help me out with this question i'm so confused...greatly appreciated..

Carbon #2!!

Draw it out. First of all it is cyclo butane. It is a butane (contains 4 carbons) and a cyclo compound (a ring format).

A ring of four carbons forms a square pattern:
_
|_|.

Call a random carbon carbon #1. Call the next carbon (either clockwise or counter clockwise) #2.
Keep going in the direction you chose, and number the rest of the carbons.

Now, its says trimethyl - three methyl groups (-CH3) on carbons 1,1, and 2.


So carbon 1 is connected to 2 methyl groups and carbon 2 and carbon 4.
Carbon 2 is connected to a methyl group, a hydrogen and carbon 3 and carbon 1.
Carbon 3 is connected to two hydrogens, carbon 4 and carbon 2.
Carbon 4 is connected to two hydrogens, carbon 3 and carbon 1.

A stereogenic center is a chiral carbon. A chiral carbon must be attached to four DIFFERENT substitutent groups.

Carbon one is connected to two methyl groups (SAME) so that's out
Carbons 3 and 4 are connected to two hydrogens each (SAME) so theyre out.

Carbon 2 is the chiral/stereogenic center of the compound
C

The C-2 is the stereogenic center. Draw it out. Can you draw the two nonsuperimposable mirror images?