A growing seeding is kept in a dark room. A burning candle is placed near it for a few days. The top part of seeding bends towards the burning candle. This is an example of :
(a) chemotropism
(b) hydrotropism
(c) phototropism
(d) geotropism
(c) phototropism
The bending of the top part of the seedling towards the burning candle is an example of phototropism.