The correct answer is E. No error.
The sentence is grammatically correct and makes sense. The word “knowledge” is a noun that refers to information or understanding. The word “each” is a pronoun that refers to all members of a group. The word “of” is a preposition that introduces a phrase that modifies the noun “us.” The word “loves” is a verb that means to feel deep affection for someone or something. The word “our” is a possessive pronoun that refers to the speaker and the other members of the group. The word “home” is a noun that refers to the place where someone lives.
The sentence could be rewritten as follows:
It is common knowledge that we all love our homes.