You must first account for shadows
The most often used application of the term virtuosity applies to music - a virtuosic piece, a virtuosic musician etc. Thus the answer to this is b. Virtuosity means extreme technical proficiency in an area of music (though it can be applied to other things as well to show mastery of a skill - a virtuosic painter etc.)
Answer: smart , great leader
Explanation:
For title as a brick wall
Answer: He cuts the grass everyday to keep the grass low to create the illusion of the yard appearing larger. By the end of the week he starts the cycle again to make sure the grass doesn't start overgrowing.