How do high resolution columns in HPLC enhance molecular separation?

In a scenario where you need to separate a mixture of polar and nonpolar molecules, which type of HPLC would you use if the stationary phase is polar?

Which effect is primarily responsible for the separation of nonpolar molecules in reverse phase HPLC?

How does the use of automated computerized instrumentation in HPLC affect its accessibility in research labs?

If a chromatogram shows a peak labeled 'CMC', what does this indicate?

What is the impact of increasing interaction sites in high resolution columns on molecular separation?

How does high pressure contribute to the efficiency of HPLC?