Recently some Japanese have been trying to make conflicts with China, ________ effects we are greatly concerned.

A．to whose

B．about whose

C．to which

D．about which

投资估算正确的步骤是( )。 (1)在汇总各单项工程费用的基础上，估算工程建设其他费用和基本预备费； (2)估算流动资金； (3)分别估算各单项工程所需的建筑工程费、设备及工器具购置费、安装工程费； (4)估算涨价预备费和建设期利息。

A．(1)(2)(3)(4)

B．(3)(1)(2)(4)

C．(3)(1)(4)(2)

D．(1)(4)(3)(2)