Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each the numbered blanks.

Choosing a career is one of the most important decisions you will make in life. It's about so (39) _______ more than deciding (40) _______ you will do to make a living. To start with, think about the amount of time we spend at work. We are on the job approximately 71% of every year. Over our lifetimes, this comes to roughly31½ years out of the 45 years most of us spend (41) _______ , from the beginning of our careers until retirement. The importance of selecting a career with which we are cannot be satisfied overemphasized.(42) _______ some people are lucky enough to just know what they want to do and end up in satisfying careers without giving it much thought, most of us are not. Many people don't put enough (43) _______ into choosing occupations or pick them for the wrong reasons. Maybe they choose careers that seem secure or pay well. They then end up unhappy. The best way to make sure that doesn't happen to you is to make a well-thought out decision.

(Adapted from https://www.qualifax.ie)

A. many