1.My new assistant can type very well but he hasn’t much experience with computer.
2. I found useful acting website and shared with my friends.
3. I left my bag on the bus therefore I didn’t have a pencil.
4.This is a great opportunity which should not be lost.
5.This soup was too cold therefore I warmed it in the microwave.
C because it's mostly focusing on the medication and not diagnosis. it can't be B because there is still a chance of the asthma patient getting an attack whether it's long term use or quick relief.
The cause-and-effect structure helps the reader understand how specific people's decisions affected the spread of the fire.