You have a small company of $20$ employees and you want to motivate them as much as possible to stay with the company because you have many direct competitors. You are looking to hire a new Chief Financial Officer $($CFO$)$ and you must decide between the following four candidates. Who would you choose?

a$.$ An applicant who has $15$ years of progressive finance experience in your company

b$.$ An applicant who has $10$ years of finance experience and five years of accounting experience with $5$ different companies

c$.$ An applicant who has $15$ years of progressive experience in finance with another company

d$.$ An applicant who has $15$ years of experience in finance with three different companies