i am the person .......................(whom / who / that) is to blame.
explain with reason.
“Who” is used as a subject and “whom” is used as an object. In the sentence we need a replacement for the noun clause “I am the person” that is a subject. Hence, the correct answer is “who” and not “whom”.
“Who” and “whom” are used for living things.
“That” and “which” are used for non-living things.
First, to know whether to use who or whom, we need to talk about the difference between subjects and objects because you use who when you are referring to the subject of a clause and whom when you are referring to the object of a clause.
in this case it is who i think