Make a inference for these questions me

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?