Consider the representation of the binary operation # below: # can be written in list notation. Which one of the following ordered pairs is an element of the list notation set representing #$?$ a$.((\backslash$geoquad $,),\backslash$Delta $)$ b$.((\backslash$Delta $,\backslash$infty $),)$ c$.(($x$,),)$ d$.((,),)$