单项选择题

在伦敦外市场上,即期汇率£1=$1.5864/1.5874而2个月期汇率标出20/10,则2个月期汇率为()

A.1.5854/1.5884
B.1.5844/1.5864
C.1.5854/1.5874
D.1.5664/1.2774