CCC1(CC)C(=O)CC[C@@]2(C)C1=CC[C@H]1[C@@H]3CC[C@H](O)[C@@]3(C)CC[C@@H]12
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?