Underproduction of good ________ create a deadweight loss and overproduction of a good ________ create a deadweight loss

The supply curve for money ________

A) is upward sloping with respect to interest rates B) is fixed to a specified interest rate C) is fixed regardless of the interest rate D) is downward sloping with respect to interest rates E) none of the above

What is the main determinant of the price elasticity of supply? Explain

Please provide the best answer for the statement.