Fixed a bug introduced on the last one

src/components/Exercises/MultipleChoice.tsx

@@ -2,7 +2,6 @@
 import {MultipleChoiceExercise, MultipleChoiceQuestion} from "@/interfaces/exam";
 import useExamStore from "@/stores/examStore";
 import clsx from "clsx";
-import {isNaN} from "lodash";
 import {useEffect, useState} from "react";
 import {CommonProps} from ".";
 import Button from "../Low/Button";
@@ -17,7 +16,7 @@ function Question({
 }: MultipleChoiceQuestion & {userSolution: string | undefined; onSelectOption?: (option: string) => void; showSolution?: boolean}) {
 	return (
 		<div className="flex flex-col gap-10">
-			{isNaN(id) ? (
+			{isNaN(Number(id)) ? (
 				<span className="">{prompt}</span>
 			) : (
 				<span className="">