On April 1, 2007, Blackfly Ltd. took out an "employer's liability" insurance policy for the first time, paying $1,000. The policy is an annual one, from April 1 to March 31 of the following year. The amount of insurance expense for the year to December 31, 2007 was _______________. Question 19 options: $250 $500 none of the options $750 $1,000