A large-sample 98 percent confidence interval for the proportion of hotel reservations that are canceled on the intended arrival day is (0.048,0.112). What is the point estimate for the proportion of hotel reservations that are canceled on the intended arrival day from which this interval was constructed？ 
选项为:A:$$0.032$$  B:$$0.064$$  C:$$0.080$$  D:$$0.160$$  E:It cannot be determined from the information given.  请回答其中一个选项.