Problem 4. (8 points)

Konstantin's mother opened a foreign currency deposit in the "Western" Bank for an amount of 10 thousand dollars for a term of 1 year. Literally 4 months later, the Bank of Russia revoked the license of the "Western" Bank. The exchange rate on the date of the license revocation was 58 rubles 15 kopecks per 1 dollar. Konstantin's mother was not too upset, as the deposits in the bank were insured under the deposit insurance system. What amount of the deposit should be returned to Konstantin's mother according to the legislation (do not consider interest payments in the calculations)?

a. 10 thousand dollars;

b. 581,500 rubles;

c. 1,400 thousand rubles;

d. 10 thousand rubles.