Which time intervals for testing would be recommended for the dental healthcare provider $($DHCP$)$ who is postexposure to a client with human immunodeficiency virus $($HIV$)?2$ weeks, $8$ weeks, $6$ months, and $1$ year$4$ weeks, $12$ weeks, $8$ months, and $1$ year At time of exposure, $6$ weeks, $12$ weeks, and $6$ months At time of exposure, $8$ weeks, $6$ months, and $15$ months