Given the following function prototype: $$ double tryMe$($double$,$ double$)$; $$ which of the following statements is valid? Assume that all variables are properly declared. Question $6$ options: a$)$ cin $>>$ tryMe$($x$)$; b$)$ cout $<<$ tryMe$($tryMe$($double$,$ double$),$ double$)$; c$)$ cout $<<$ tryMe$(2\mathrm{.}0,3\mathrm{.}0)$; d$)$ cout $<<$ tryMe$($tryMe$($float$,$ float$),$ float$)$;