Probabilities from a category pie chart

A school survey is shown by the pie chart. The five sector angles for clubs A, B, C, D and E are \(72^\circ,96^\circ,108^\circ,48^\circ,36^\circ\), respectively.

1. Find the probability that a randomly selected student chose
   1. club C,
   2. club B or E.
2. A student claims exactly one third chose A or D. Determine whether the claim is true.