Process of evolution is
Continuous
The correct option is A:
Explanation of the correct option :
Evolution is the change in the properties of groups of organisms over the course of generation. Evolution is continuous from ancestral period which makes evolution a continuous process.
Explanation of the incorrect option:
Option B:
Evolution is continuous process.
Option C:
Evolution is continued from the ancient time, At present each organism is still evolving.
Option D:
Evolution is always continuous.
Final answer: Evolution is continuous process.