I have a vizio d43-d2 tv. It has 3 hdmi ports. I can not see any of them labelled as ARC, but when going thru the menu items on the tv there are 3 selections for cc: enable, disable, cec Arc only. SO I am wondering about ARC. If it does have arc, which of the 3 hdmi ports is the right one. If it does not , why does the menu reference cec arc?.