4. an annual shortage of roses drives up their cost around

a. labor day.
b. valentine's day.
c. independence day.
d.

B. Valentine’s Day. On Valentine’s Day in 2011 I think it was, California sold almost 25 million roses. Or something like that

Fist of all, you need to learn about cad and architecture or basic engineering or architecture drawing in order to prorperly use and utilize cad programs.it's as abbreviated computer-aided-drafting. it will the user acquire skills faster since it's aided by technology