Fill in the blanks with the most appropriate option:-

Jason said that he felt completely detached …….. his country.

from

The correct option to fill in the blank is from.

The word "from" is used to indicate separation or distance. In this context, Jason is saying that he feels completely separated or distanced from his country.

The other options are not as appropriate:

• Of is used to indicate possession or part of something. It would not be accurate to use "of" in this context, as Jason is not saying that he feels like he is not a part of his country.
• To is used to indicate movement towards something. It would not be accurate to use "to" in this context, as Jason is not saying that he feels like he is moving away from his country.
• By is used to indicate the means by which something is done. It would not be accurate to use "by" in this context, as Jason is not saying that he feels like he is separated from his country by something.