In the given exercise, an Assertion is followed by the corresponding Reason. Select the suitable answer from the given options:
  
1.
Assertion:Accumulation of variations is the basis for the occurrence of evolution.
Reason:In sexual reproduction of animals, including human beings, the number of successful distinct variations among individuals is high.
 
2.
Assertion:In sexual reproduction, individuals in a population are more likely to be affected by the disease.
Reason:Sexual reproduction promotes variation in the progeny.