NEET UG 2021 — Sexual Reproduction in Flowering Plants

A typical angiosperm embryo sac at maturity is:

In some members of which of the following pairs of families, pollen grains retain their viability for months after release?

The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is