For the following statements:
P - The lateral stress in the soil while being tested in an oedometer is always at-rest.
Q - For a perfectly rigid strip footing at deeper depths in a sand deposit, the vertical normal contact stress at the footing edge is greater than that at its centre.
R - The corrections for overburden pressure and dilatancy are not applied to measured SPT-N values in case of clay deposits.
The correct combination of the statements is ?