Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction becausec

Option 1 : Sexual reproduction is a lengthy process.
Option 2 : Gametes of parents have qualitatively different genetic composition.
Option 3 : Genetic material comes from parents of two different genetic compositions.
Option 4 : Greater amount of DNA is involved in sexual reproduction.