[Q]: How does the sentence end?

The chemical that the scientist used was more dangerous than the other liquid, because the 
OPTIONS:
- chemical was weak.
- liquid was weak.

[A]: liquid was weak.
QUES: Continue writing.

Cooking in a microwave is easier than cooking on the stovetop because the 

OPTIONS:
- microwave is faster.
- stovetop is faster.
+++++++++
ANS: microwave is faster.
Problem: How does the sentence end?

He was going to read the magazine instead of the book at the meeting, since the 
OPTIONS:
- magazine was complex.
- book was complex.
Answer: book was complex.
sentence: At the restaurant, the steak tasted charred, while the seafood was fantastic, so the  OPTIONS:
- steak was cooked properly.
- seafood was cooked properly.
complete: seafood was cooked properly.
they bought many boots which were not comfortable for travel they had to return some, the 
OPTIONS:
- boots was limited.
- comfort was limited.
comfort was limited.
Problem: Continue the following story.

At the coffee shop Erin prepared the beverage for Christine, since 
OPTIONS:
- Erin was the barista.
- Christine was the barista.
Here's how I want to continue it:
Erin was the barista.