单项选择题

It is only more recently that the value of advertising has become increasingly understood.

A)只是在最近,人们才逐渐了解做广告的价值。
B)广告在最近,才逐渐被人们所了解。
C)它在最近才体现出对广告价值的理解。
D)它使广告更加简单易懂。