Nelson had an easier time controlling his emotions than Jeffrey because 
OPTIONS:
- Nelson was so overwhelmed.
- Jeffrey was so overwhelmed.
Jeffrey was so overwhelmed.

Sarah had curly handwriting in the letter while Felicia had boxy handwriting, 
OPTIONS:
- Sarah was very feminine.
- Felicia was very feminine.
Sarah was very feminine.

I prefer sending emails much more than I like sending letters, because the 
OPTIONS:
- emails are convenient.
- letters are convenient.
emails are convenient.