问题详情

According to the professor, why do architects use sketches？
A．Architects are not clear about the final design at the beginning.
B．To design large buildings, architects must work in a smaller scale.
C．Engineers use the architect"s sketches to implement the details.
D．Sketches are used as a record of the stages in development.请帮忙给出正确答案和分析，谢谢！