John works as a Network Administrator for Web Perfect Inc. The company has a wireless LAN network. John configures 802.11 authentications on all the clients present in the network. A client becomes active on the network and wants to pass traffic on the medium. Which of the following frames does the client use to search all access points in its radio range?

A.
Probe request frame

B.
Authentication request frame

C.
Association request frame

D.
Authentication response frame