The correct answer is: A. option closing price.
A Treasury bill is a short-term debt obligation issued by the United States government. It is considered to be a risk-free asset because the U.S. government is considered to be a very safe borrower. The yield on a Treasury bill is the interest rate that the U.S. government pays on the bill. The yield on a Treasury bill is calculated as the annualized percentage return that an investor would earn if they bought the bill at its current price and held it until maturity.
The option closing price is the price of an option at the end of the trading day. The option closing price is used to calculate the option’s profit or loss for the day. The option beginning price is the price of an option at the beginning of the trading day. The option beginning price is used to calculate the option’s profit or loss for the day. The option expiration is the date on which an option expires. The option expiration is used to determine whether an option is in the money, out of the money, or at the money. The option model is a mathematical model that is used to calculate the price of an option.
The yield on a Treasury bill is not equal to the option closing price, option beginning price, option expiration, or option model.