Answer:
c. make a sterilized purchase of foreign bonds.
Step-by-step explanation:
A bond can be defined as a debt or fixed investment security, in which a bondholder (investor or creditor) loans an amount of money to the bond issuer (government or corporations) for a specific period of time. The bond issuer are expected to return the principal (face value) at maturity with an agreed upon interest (coupon), which are paid at fixed intervals.
Bonds are generally debts, which may be floated in different ways with respect to the issuer of the bond and its type. Bonds are used by government and corporate institutions to borrow money with interest and they also have to pay for the face value of the bonds at maturity.
The par value of a bond is its face value and it comprises of its total dollar amount as well as its maturity value. Also, the par value of a bond gives the basis on which periodic interest is paid. Thus, a bond is issued at par value when the market rate of interest is the same as the contract rate of interest. This simply means that, a bond would be issued at par (face) value when the bond's stated rated is significantly equal to the effective or market interest rate on the specific date it was issued.
In Economics, bonds could either be issued at discount or premium. A bond that is being issued at a discount has its stated rate lower than the market interest rate, on the specific date of issuance while a bond that is issued at a premium, has its stated rate higher than the market interest rate on the specific date of issuance.
Hence, a central bank can increase its international reserves without changing the domestic money supply by making a sterilized purchase of foreign bonds.