Find the appropriate word and fill blank (iii).

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.

The difference in ______(i)______ of parents towards their several children, is sometimes _______(ii)_____; especially in the mothers. As goes a famous saying, “A _____(iii)_____ son rejoices the father, but an ungracious son shames the mother.” Men have a foolish manner in creating and breeding _______(iv)_____ between brothers, during childhood, which may at times disturb the families.