Always check for understanding because if not you’ll get it will get it wrong.
The correct preposition that you should add to make the sentence correct is TO. The answer is then "To facilitate a quick getaway, the cunning thief parked the car perpendicular to the building". Perpendicular things always have the preposition TO next to them.
preserve is a noun and many other parts of speech if u use it in different ways so yeah
Hello!
The answer to your question is B and C.
Coalitions can be formed to achieve goals.
If one person leaves there is still a group.
~Hope this Helps!~