Can anyone help me with this one question that I'm stumped on?

The process by which a web-spinning spider makes a "sketch" of a web design before making a permanent web is called -

A. lock-step sequence
B. simulation
C. trial and error
D. cinch and attach

Thanks in advance!

There is no spider that makes such a sketch. Web spinning is a process that follows a genetically programed sequence not a thought out one. As such a spider needs no sketch. This must be a bogus question. I see it on several sites and no one answered it sensibly.Additionally no web is permanent. All that said, I'd answer B