At the time of retirement of a partner, the retiring partner's Capital account will be credited with:

His/Her share of Goodwill

The correct answer is Option (1) → His/Her share of Goodwill

The sum due to the retiring partner (in case of retirement) and to the legal representatives/ executors (in case of death) includes:
(i) credit balance of his capital account;
(ii) credit balance of his current account (if any);
(iii) his share of goodwill;
(iv) his share of accumulated profits (reserves);
(v) his share in the gain of revaluation of assets and liabilities
(vi) his share of profits up to the date of retirement/death;
(vii) interest on his capital, if involved, up to the date of retirement/death; and
(viii) salary/commission, if any, due to him up to the date of retirement/death.