Which of the following statements is true regarding capitalization of interest?

a. interest cost capitalized in connection with the purchase of land to be used as a building site should be debited to the land account and not to the building account.
b. the amount of interest cost capitalized during the period should not exceed the actual interest cost incurred.
c. when excess borrowed funds not immediately needed for construction are temporarily invested, any interest earned should be recorded as interest revenue.
d. the minimum amount of interest to be capitalized is determined by multiplying a weighted average interest rate by the amount of average accumulated expenditures on qualifying assets during the period.