Basic cable television service, which includes 16 channels, costs $15 a month. The initial labor fee to install the service is $25. A $65 deposit is required but will be refunded within two years if the customer's bills are paid in full. Other cable services may be added to the basic service: the movie channel service is $9.40 a month; the news channels are $7.50 a month; the arts channels are $5.00 a month; the sports channels are $4.80 a month. A customer's first bill after having cable television installed totaled $112.50. This customer chose basic cable and one additional cable service.Which additional service was chosen?