sentence: Brian wanted to teach Robert how to paint using watercolors because  OPTIONS:
- Brian was a good teacher.
- Robert was a good teacher.
complete: Brian was a good teacher.

sentence: I prefer to use a laptop instead of a computer because the  OPTIONS:
- laptop can be taken everywhere.
- computer can be taken everywhere.
complete: laptop can be taken everywhere.

sentence: If you're interested in alpha hydroxy acid for skincare, I'd recommend starting with our cream rather than our serum since the  OPTIONS:
- cream is harsher.
- serum is harsher.
complete:
serum is harsher.