Which of the following statements about communication is/are either true or false?
1. Gang plank theory of Henry Fayol is an example of vertical communication.
2. Encoded messages are not always decoded effectively because of different fields of organism.
3. 'Filtering' is not an intervention which vitiates communication.
4. 'Grapevine' communication moves faster than formal communication.

A. 1 and 3 are true, 2 and iv are false

B. 1 and 4 are true, 2 and 3 are false

C. 1 and 4 are true, 1 and 3 are false

D. 1, 2 and 3 are true and 4 is false

Answer: Option C