Why would "expirationdate” be a poor choice as a primary key? date/time data type cannot function as a primary key. primary key choices should contain a decimal data type. there could be more than one item with the same expiration date. date/time is always used as a boolean data type.

yes we can change both the color of the value of a cell as well as background color of a cell at the same time .

as we know that excel sheet consists of columns and rows.

and intersection of column and row is called cell.

we can change color of the cell and background of the cell at the same time.

hence the statement that

can a person change color of the cell and background of the cell at the same time is true.

whats the answer to this question