Which ones of the following are not bid-ask spread determinants in the FX market? a. A dealer's inventory position b. The popularity of the currency c. Transaction costs associated in processing and clearing the transactions d. The liquidity of the currency being quoted e. The volatility of the currency being quoted f. The composition of foreign currency reserves of the central bank of the country issuing the currency g. Risk appetite h. The credit rating of the country issuing the currency