What a beautiful dress in the window!（）

A.I have no idea about it.

B.Yes, really. If I had the money, I‘d buy it.

C.You can‘t wear it.

D.There‘s no money to buy it

某押品评估确认价值为100万元，审批抵（质）押率为60%，签订了一份60万元的最高额抵押担保合同，其中该押品的担保金额为40万元，C3中该担保合同实际可用担保额度为（）。

A.100万元

B.70万元

C.60万元

D.40万元