CellBaseline is an option for Cell which specifies where the baseline of the cell should be assumed to be when it appears inside another cell.
CellBracketOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for cells that specifies settings for cell brackets.
CellEditDuplicate is an option for Cell which specifies whether the front end should make a copy of the cell before actually applying any changes in its contents that you ...
CellEvaluationFunction is an option to Cell which gives a function to be applied to every expression from the cell that is sent to the kernel for ordinary evaluation.
CirclePlus[x, y, ...] displays as x\[CirclePlus]y\[CirclePlus]....
ColorFunctionScaling is an option for graphics functions that specifies whether arguments supplied to a color function should be scaled to lie between 0 and 1.
ColumnAlignments is an option for the low-level function GridBox that specifies how entries in each column should be aligned.
ColumnLines is an option for the low-level function GridBox which specifies whether lines should be drawn between adjacent columns.
ColumnSpacings is an option for the low-level function GridBox which specifies the spaces in ems that should be inserted between adjacent columns.
CompilationOptions is an option for Compile that specifies settings for the compilation process.