I honestly think that a or d would be the best options. I would start with D and if that doesn't work try a.
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
Answer:
Somatic mutations are mutations that occur in body cells, that is the cells that do not make gametes. These mutations are not passed on to further generations; for example, if a mutation that changes a gene in a skin cell would not affect your children because skin cells don't produce gametes.
Explanation:
