单项选择题

You are a project manager for a small project.Your project was budgeted for ¥500,000 over a six-week period.As of today,you've spent ¥260,000 of your budget to complete work that you originally expected to cost ¥280,000.According to your schedule,you should have spent ¥300,000 by this point.Based on these circumstances,your project could be best described as ().

A.ahead of schedule
B.behind schedule
C.on schedule
D.having not enough information provided