Wii Remote Button Layout: There Is No "C" Button

The Wii Remote has no "C" button. You may be confusing it with another controller.

Wii Remote Buttons

Face: A (large), B (trigger), 1, 2
Navigation: + (Plus), - (Minus), Home
Directional: D-Pad (Up/Down/Left/Right)
Power: Red Power Button (top left)
Sync: Red Sync Button (under battery cover)
Motion: Accelerometer + IR pointer (no button)

Controllers With a "C" Button

Controller	"C" Button Location
Nintendo 64 Controller	Yellow C Buttons (C-Up, C-Down, C-Left, C-Right) on right side
GameCube Controller	Orange C-Stick (analog) on right; no "C" face buttons
Classic Controller / Classic Controller Pro (Wii)	Two analog sticks (L3/R3 clickable), ZL/ZR triggers—no "C" label
Wii U Pro Controller	Clickable sticks, ZL/ZR—no "C"
Switch Pro Controller	Clickable sticks, ZL/ZR—no "C"

Common Confusion

Nunchuk: Has C Button (round, front) and Z Button (trigger). Used with Wii Remote.
GameCube Controller on Wii: Plugs into Wii top ports—has C-Stick.

If you're looking for the Nunchuk's C Button: it's the round button on the front of the Nunchuk, used in many Wii games for crouch, aim, or special actions.

Nintendo Wii