The prepaid insurance account had a balance of $3,000 at the beginning of the year. The account was debited for $32,500 for premiums on policies purchased during the year. Journalize the adjusting entry required under each of the following alternatives for determining the amount of the adjustment: 

(a) The amount of unexpired insurance applicable to future periods is $4,800; 

(b) The amount of insurance expired during the year is $30,700.