Someone help!! Plis show all the steps!!!

If you don’t know the subject or how to do the steps then plz don’t answer because it’s really important!

Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2