More than anything else, my brother calvin wanted to be a great runner. every morning he got up long before the rest of my family did and ran 4 - 6 miles. somedays he would run up to 10 miles or more. my mother marveled at his increased appetite, and my father praised his dedication. as for me, i was actually just jealous of him--jealous of both his ability and the attention he got from my parents.
this paragraph needs editing primarily because of its
a) punctuation errors.
b) capitalization errors.
c) many misspelled words.
d) sentence structure problems.