Computer Basic Information
In case of MS-EXCEL, If you begin typing an entry into a cell and then realize that you don't want your entry placed into that cell, you:

None of these
Press Esc
Press the Edit formula button
Press the Enter button
Press the Erase key

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Computer Basic Information
The Santa Clara Valley, California is popularly known as Silicon Valley of America because

huge deposits of silicon are found there
Santa Claus visits it every Christmas
many silicon chip manufacturing firms are located there
it is full of large grain sand
None of these

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