Answer
The stereocenter of this molecule is the only carbon that makes 3 visible carbon bonds.
Work Step by Step
1. Look for all the carbons that are making at least 3 visible bonds.
** If a carbon has less than 3 visible bonds, it means that it has 2 hydrogens (equal groups) or has a double bond. Therefore, it can't have 4 different groups, so it can't be the stereocenter.
2. Since we know that there is only 1 stereocenter, find the carbon that has 4 different groups connected to it.
** Don't forgot the Hydrogen.
If a carbon follow this rule, it is a stereocenter.
