Geitonogamy is

Both chasmogamous and cleistogamous flowers are produced by

Choose the option that correctly identifies (A-D) blanks in the statements (I-IV) given below:

I. An embryo develops at the $\underline{ \mathrm{A} }$ end of embryo sac.
II. $\underline{ \mathrm{B} }$ seed was discovered during the archaeological excavation at King Herod’s palace.
III. $\underline{ \mathrm{C} }$ is a form of asexual reproduction that mimics sexual reproduction.
IV. Pollen-pistil interaction is a $\underline{ \mathrm{D} }$ process.