Concept:Auxin is a plant hormone produced by the shoot tip.
It promotes cell elongation and controls normal shoot growth.
Explanation:The shoot tip is the main natural source of auxin in a plant.
When the shoot tip is removed, this auxin supply is cut off.
Without auxin, growth in that region would normally stop.
Here, the cut tip is replaced by an agar block that contains auxin.
The auxin from the agar block diffuses into the plant tissue.
This restores the normal level of auxin at the shoot tip.
As a result, cell elongation and growth continue as before.
The plant does not grow faster, because the auxin supply is only restored to normal.
It also does not die, because the rest of the plant remains intact.
Answer:The plant will continue to grow normally.
Correct option: C.