During the design process, what role do computer$-$aided design $($CAD$)$ and finite element analysis $($FEA$)$ play in ensuring structural integrity?

a$)$ CAD facilitates architectural detailing, while FEA predicts seismic behavior.

b$)$ CAD assists in material selection, while FEA simulates wind loads.

c$)$ CAD generates construction drawings, while FEA analyzes traffic patterns.

d$)$ CAD aids in cost estimation, while FEA determines environmental impacts.