Read the excerpt from The Common Sense of Bicycling: Bicycling for Ladies. The beginner usually exerts too much pressure on the pedals, and has to correct the falling tendency of the machine. This is very hard work, and stiff arms and shoulders and blistered hands may be often thus accounted for; they are the result of badly balanced pedaling. To be able to sit comfortably at work, and to feel that it is not so hard after all, is a great advance.

What would most add to the completeness of these excerpt?

an explanation of why sitting correctly is so important
an explanation of how to achieve the correct sitting position
an explanation of how to pedal while sitting correctly
an explanation of why sitting in the correct position is elegant