Please help! you are amazing also brainliest :) Read the following sentence:

The company obtained the blueprints using subterfuge - a former employee snuck out by hiding them in her pant leg.

Based on the context clues in the sentence, what is the definition of the word subterfuge?

A. A deceptive device or strategy
B. A legal transaction between two parties
C. A floor plan using blueprints or schematics
D. A display of high intelligence