Angular 6单选按钮无法使用名称对其进行分组

<form [formGroup]="myForm">
  <label>
    <input type="radio" formControlName="option" value="option1"> Option 1
  </label>
  <label>
    <input type="radio" formControlName="option" value="option2"> Option 2
  </label>
  <label>
    <input type="radio" formControlName="option" value="option3"> Option 3
  </label>
</form>

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormBuilder } from '@angular/forms';

@Component({
  selector: 'app-my-component',
  templateUrl: './my-component.component.html',
  styleUrls: ['./my-component.component.css']
})
export class MyComponentComponent implements OnInit {
  myForm: FormGroup;

  constructor(private formBuilder: FormBuilder) { }

  ngOnInit() {
    this.myForm = this.formBuilder.group({
      option: ''
    });
  }
}