The greatest amount of detailed capital budgeting analysis is typically required when deciding whether to:（）

A. expands production capacity.

B. replaces a functioning machine with a newer model to reduce costs.

C. introduces a new product or develops a new market.

中国园林发展史中，出现田园型山水园林的时期是（）。

A.萌芽期

B.生成期

C.发展期

D.全盛期