The sentence in question is: "My mother who is from the village is very superstitious." The issue here is the absence of a necessary punctuation mark that clarifies the sentence structure and meaning. Let's identify the correct punctuation to insert:
The sentence contains an essential clause, which is "who is from the village." This clause provides additional information about the subject, "My mother," but it is non-restrictive, meaning that it is not essential to the complete understanding of the sentence. To indicate a non-restrictive clause in English, commas are used to separate it from the rest of the sentence.
Therefore, the appropriate punctuation mark to use in this case is the comma.
The correctly punctuated sentence should be: "My mother, who is from the village, is very superstitious."
This answer aligns with the options provided, confirming the correct choice is: Comma.