Radio button: attribute that it is automatically selected

Question

I want a radio button to be automatically selected every time it is open in the screen. so that the user will no longer click it. what attribute will i use?

<input type="radio" name="sex" value="male">Choose<br>

Answer 1

Add checked

<input type="radio" name="sex" value="male" checked>Choose<br>

To hide the radio button use below css:

input[type="radio"]:checked{
    visibility:hidden;
}

Answer 2

checked attribute used to set your radio button or checked box to pre-selected state while page is loaded.

<input type="radio" name="sex" value="male" checked>Choose</br>

Answer 3

<input type="radio" name="sex" value="male" checked='checked'>Choose<br>

Answer 4

<input type="radio" name="sex" value="male" checked>Male</br>
<input type="radio" name="sex" value="female">Female</br>

Click Here for the working example on jsFiddle.

Hope this helps