Ten year old Matt Zigbowski struggles at school. His teacher seats students alphabetically, so he is at the back of the classroom. He cannot see the words on the chalkboard from his desk. When he goes to the teacher's desk near the chalkboard, he can see the words. What is probably wrong with his eyes?

a. hyperopia
b. myopia
c. astigmatism
d. astigmatism and myopia
e. astigmatism and hyperopia