Before finalising this transaction, I had to sign an indemnity bond.

Answer: Option B

Compensation : something, typically money, awarded to someone in recognition of loss, suffering, or injury.
Security : the state of being free from danger or threat.
Partnership : the state of being a partner or partners.
Reparation : the action of making amends for a wrong one has done, by providing payment or other assistance to those who have been wronged.
Indemnity : security or protection against a loss or other financial burden.

Synonym of Indemnity is Security