Cyclic hydrocarbon molecule $A$ has all the carbon and hydrogen atoms in a single plane. All the carbon-carbon bonds are of the same length and are less than $1.54 \ \mathring{A}$ but more than $1.34 \ \mathring{A}$. The $C-C-C$ bond angle will be:

• A
  $120^{\circ}$
• B
  $180^{\circ}$
• C
  $100^{\circ}$
• D
  $109^{\circ}28'$