如下程序中,插入选项中哪一条where语句,可以选择变量Hire_date中的记录“February 23, 2019”. data newstaff; set staff; <insert WHERE statement here> run;
A.where hire_date='23feb2019'd;
B.where hire_date='23feb2019';
C.where hire_date='02/23/2019'd;
D.where hire_date='02/23/2019';