writing program in function not executing the CLI command in nodeJs

I am making a custom CLI so I wrote a code

#!/usr/bin/env node

var { program } = require("commander");
var { prompt } = require("inquirer");
const Science = require("./Science");
program.version("0.0.1");

// questions
const questions = [
  {
    type: "list",
    name: "subjectType",
    message: " Select export Source ",
    default: false,
    choices: [
      "Science",
      "Maths",
      "English",
      "Exit",
    ],
  },
];

function startQuery() {
  program
    .command("run")
    .alias("r")
    .description("Subject")
    .action(() => {
      prompt(questions).then((answers) => {
        if (answers.subjectType === "Science") {
          Science();
        } else if (answers.subjectType === "Maths") {
          // Maths();
        } else if (answers.subjectType === "Exit") {
          wantToExit();
        }
      });
    });
}

function wantToExit() {
  inquirer
    .prompt([
      {
        name: "moreQuery",
        type: "confirm",
        message: "Want to do anything else?",
      },
    ])
    .then((answer) => {
      if (answer.moreQuery) return startQuery();
    });
}

program.parse(process.argv);

so when I type Subject run in console it won’t run my cli but when I remove startQuery function its execute the Program and I Don’t know why its behaving like this

running by removing function startQuery()

program
    .command("run")
    .alias("r")
    .description("Subject")
    .action(() => {
      prompt(questions).then((answers) => {
        if (answers.subjectType === "Science") {
          Science();
        } else if (answers.subjectType === "Maths") {
          // Maths();
        } else if (answers.subjectType === "Exit") {
          wantToExit();
        }
      });
    });

Then in console I write Subject run its Execute properly
but if I do this its not executing the program

function startQuery() {
  program
    .command("run")
    .alias("r")
    .description("Subject")
    .action(() => {
      prompt(questions).then((answers) => {
        if (answers.subjectType === "Science") {
          Science();
        } else if (answers.subjectType === "Maths") {
          // Maths();
        } else if (answers.subjectType === "Exit") {
          wantToExit();
        }
      });
    });
}

As i need this startQuery function in wantToExit function so I can use it again if user want to continue