目前，商业银行业务窗口普遍可以办理开放式基金的申购和赎回业务，此类业务属于商业银行的（）。

A.中间业务

B.负债业务

C.资产业务

D.存款业务

(A) 条件(1)充分，但条件(2)不充分．
(B) 条件(2)充分，但条件(1)不充分．
(C) 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
(D) 条件(1)充分，条件(2)也充分．
(E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

A home owner must pick between paint A, which costs $6,00 per liter, and paint B, which costs $4.50 per liter. Paint B takes one-third longer to apply than paint A. If the home owner must pay the cost of labor at the rate of $36 per hour, which of the two paints will be cheaper to apply
(1) The ratio of the area covered by one liter of paint A to the area covered by paint B is 4:3.
(2) Paint A will require 40 liters of paint and 100 hours of labor.