Angular 我需要将mat按钮切换为单选按钮？

嗨，我是angular的新手，我需要将下面的代码更改为单选按钮

需要认证
对
不

需要为认证版本添加输入框

---

如下图所示更改切换组码

<div>
   <mat-radio-group aria-label="cert req" name="certification" 
      [(ngModel)]="modalData.certificationReq">
     <mat-radio-button [value]="true">Yes</mat-radio-button>
     <mat-radio-button [value]="false">No</mat-radio-button>
   </mat-radio-group>
</div>

对
不

如下图所示更改切换组码

<div>
   <mat-radio-group aria-label="cert req" name="certification" 
      [(ngModel)]="modalData.certificationReq">
     <mat-radio-button [value]="true">Yes</mat-radio-button>
     <mat-radio-button [value]="false">No</mat-radio-button>
   </mat-radio-group>
</div>

对
不

在you.html中：

<label class="radio-group">Certification</label>
<mat-radio-group class="radio" color="primary">
  <ng-container *ngFor="let option of options">
    <mat-radio-button class="radio-button col-md-3"  [value]="option.value">{{option.name}}</mat-radio-button>
  </ng-container>
</mat-radio-group>

在you.html中：

<label class="radio-group">Certification</label>
<mat-radio-group class="radio" color="primary">
  <ng-container *ngFor="let option of options">
    <mat-radio-button class="radio-button col-md-3"  [value]="option.value">{{option.name}}</mat-radio-button>
  </ng-container>
</mat-radio-group>