Catherine gently pushes the tip of her finger against the eraser of her pencil and the pencil does not move. Which of the following figures best illustrates the interaction of forces between Catherine’s finger and the pencil?

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.