Assuming row 1 is used for header and that the data in column C has already been entered, try this code:
Dim lRow As Integer
lRow = Range("C" & Rows.Count).End(xlUp).Row
For Each cell In Range("C2:C" & lRow)
If cell.Value = Sheets("MC").Cells(cell.Row, "C") Then
Rows(cell.Row).Interior.ColorIndex = 3
The highlighted row is colored red (ColorIndex = 3). If you wish to change color, then record a macro, applying your color, stop recording, check which ColorIndex Excel has given your color.