Question

read the excerpt from levitt and dubners freakonomics. driving around the parks that encircle washington, he solicited customers with a simple pitch: early in the morning, he would deliver some bagels and a cash basket to companys snack room; he would return before lunch to pick up the money and the leftovers. it was an honor - system commerce scheme, and it worked. within a few years, feldman was delivering 8,400 bagels a week to 140 companies and earning as much as he had ever made as a research analyst. he had thrown off the shackles of cubicle life and made himself happy. the authors prove feldmans success by describing the honor - system scheme his daily routine his work as an analyst the size of his business

Explanation:

The text mentions that within a few years, Feldman was delivering 8,400 bagels a week to 140 companies. This description of the scale of his business (number of bagels and number of companies) is a way to show his success. The honor - system scheme is just the method he used, his daily routine is a part of how he operated but not the proof of success, and his work as an analyst is a comparison point (he earns as much as he did as an analyst) but not the direct proof of success in his new bagel business.

Answer:

the size of his business