Answer: how a job’s pay rate in one company compares to the job’s pay rate in other companies
Explanation: External equity refers to the situation when a company's pay rate differs from the market's pay rate to the employees of the organisation. It is also termed as matching strategy.
It is considered as a major factor in employing and retaining sufficient employees in the organisation. Therefore, lesser the external equity the better it is.
From the above explanation we can conclude that the correct option is A.