If someone else types your letter, where do you find the reference to that person?

A. At the top left-hand corner
B. At the end of the last paragraph
C. A few spaces below the signature

Select the dangling modifier in the paragraph. yesterday was a rough day. running for the bus, the rain began to pour. then, at guitar lessons, i had to play a song i hadn’t practiced. while walking home, i turned my ankle. my swollen ankle caused me to limp.