C major and A minor have no sharps or flats.
Answer:
<em>D Lan</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Windows settings.
1234567890
The answer to this question is: CE
Calculator will memorize the input that you made from previous calculation until you press the = button.
CE stands for clear data, which means that by pressing this, you will eliminate the calculation from previous effort and start the new calculation on a blank state