Answer:
Statement B would impair the independence of Jackson & Company, as any service which involves the contingent fee arrangements with the client will impair his independence.
Step-by-step explanation:
Statement A will not hinder the independence as:
Personal tax services provided to employees of the client do not hinder the independence, but if the same services are provided to corporate officers this is hindrance to independence.
Statement C will not hinder independence as:
In fact, these services are required when performing audit, internal control audit is essential as per PCAOB
Statement D will jot hinder independence as:
This is applicable only if it relates to previous year, since he do not provide service now, it is not going to effect the independence.