How do I keep and append placeholder text into the selected value in React Select?

Let’s say I have a React Select with a placeholder (‘Selected Value: ‘), and I want to keep the placeholder and append it into the selected value so that it looks something like (‘Selected Value: 1’). Is there any way to do it?

import Select from "react-select";

export default function App() {
  const options = [
    { value: 1, label: 1 },
    { value: 2, label: 2 },
    { value: 3, label: 3 },
    { value: 4, label: 4 }
  ];
  const placeholder = "Selected Value: ";
  return (
    <div className="App">
      <Select options={options} placeholder={placeholder} />
    </div>
  );
}

codesandbox: https://codesandbox.io/s/brave-chatterjee-pjol2d?file=/src/App.js:23-385

EDIT: Sorry, forget to mention, I do not want the placeholder to directly be in the labels of the options

>Solution :

you can accept my answer

import Select from "react-select";
import { useState } from "react";

export default function App() {
  const [selectBoxValue, setSelectBoxValue] = useState('')
  const options = [
    { value: 1, label: 1 },
    { value: 2, label: 2 },
    { value: 3, label: 3 },
    { value: 4, label: 4 }
  ];
  const placeholder = `Selected Value: ${selectBoxValue}`;
  return (
    <div className="App">
      <Select 
      options={options} 
      placeholder={placeholder} 
      value={placeholder}
      onChange={(event) => setSelectBoxValue(event.value)} />
    </div>
  );
}