The correct answer is A.Ctrl, Alt, Delete
Step-by-step explanation:
In computers, one of the first solutions users should try when the computer is running low or they experience a similar issue is to restart the computer. This can be done by pressing or clicking on the power button or icon and selecting restart or by pressing the keys Ctrl + Alt + Del (Delete) as this would immediately restart the computer and can be used when the computer is frozen or you cannot move the cursor to select the power icon. According to this, Antonio should press Ctrl, Alt, Delete to restart his computer as this is one of the main ways he can try to solve his problem.