OMC-SP and MDD-SP denote the optimum moisture content and maximum dry density obtained from standard Proctor compaction test, respectively. OMC-MP and MDD-MP denote the optimum moisture content and maximum dry density obtained from the modified Proctor compaction test, respectively. Which one of the following is correct?

1. OMC-SP $<$ OMC-MP and MDD-SP $<$ MDD-MP
2. OMC-SP $>$ OMC-MP and MDD-SP $<$ MDD-MP
3. OMC-SP $<$ OMC-MP and MDD-SP $>$ MDD-MP
4. OMC-SP $>$ OMC-MP and MDD-SP $>$ MDD-MP