drag down rows that match column in different sheet, but skip every 3 cells in column

[mbkr29]

My example is in cell T2. I have it set up where i can drag the formula across that row correctly, but I cannot figure out how to drag it down each column the way i want it. for example i want the formula:
in t2 to start at cell 'option data' c2
in t3 to start at cell 'option data' c8
in t4 to start at cell 'option data' c14

when i drag down the formula it starts t3 at cell 'option data' c3