Identify wind pollinated plant

Functional megaspore in an angiosperm develops into an

Transfer of pollen grains from the anther to the stigma of another flower of the some plant this process is

Rose plants produce large, attractive bisexual flowers but they seldom produce fruits. On the other hand a tomato plant produces plenty of fruits though they  have small flowers. Analyse the reasons for failure of fruit formation in rose.

identify different ovules of diagrams $A$ to $F$