Decimals, SM-Bank 007 MC

Connie is reading the outside temperature during winter in her hometown.

What is the value of the point marked  `text(P)`  on this temperature scale?
 
 

1. `-3.4^@text(C)`
2. `-3.8^@text(C)`
3. `-2.1^@text(C)`
4. `-2.2^@text(C)`