A – Wrong
Clones will not always have identical external features due to the environment.
B – Wrong
This is not necessarily true as twins show some differences between each other. They can also be non-identical
C – Wrong
Clones can occur naturally in the environment too in asexual reproduction.
D – Wrong
If mutation did occur, there would be some sort of variation in their DNA and genes. Mutation is the complete opposite of clones.
E – Wrong
Clones contain identical DNA and show no variation whatsoever.