(A) : A bird perches on a high power line and nothing happens to the bird.
(R) : The level of bird is very high from the ground.

GIven: A set of statements provided and asked to judge whether the assertion is true, or false and wether the reason is  true, false and suitable explanation.

Concept Used: Electric charge

Detailed Solution:

When a bird is perched on a bare high power line, the circuit does not get complete between the bird and the earth therefore, nothing happens to the bird. 

The correct option is C.