In the following passage some words have been deleted. Read the passage carefully and select the most appropriate option for each blank.
Radio Talk is a kind of writing that is in some ways (1)______ to a magazine or feature article. However, in this case, the radio talk is (2)______ written for the radio. Although talks are usually based on one’s (3)______ experiences yet they must be of general interest to a wider (4)______ .The key is to have an interesting opening so that it grabs the listener’s (5)______.

Select the most appropriate option to fill in blank no. 3.

1. A
   indifferent
2. B
   personal
3. C
   public
4. D
   alien