Sub SendTab()
'Declare and initialize your variables, and turn off screen updating.
Dim wks As Worksheet
Application.ScreenUpdating = False
Set wks = ActiveSheet
'Copy the target worksheet, specified in cell C1, to the clipboard.
Worksheets(Range("C1").Value).Copy
'Send the content in the clipboard to the email account specified in cell A1,
'using the subject line specified in cell B1.
ActiveWorkbook.SendMail wks.Range("A1").Value, wks.Range("B1").Value
'Do not save changes, and turn screen updating back on.
ActiveWorkbook.Close savechanges:=False
Application.ScreenUpdating = True
End Sub