Which of the following sentences contains at least one error? a. Our system applications and volume based servicing capabilities have made credit collection services a recognizable industry leader. b. Not only have we mastered complex servicing requirements, we invest in the latest technology to provide the highest performance levels possible. c. The credit collection services organization enjoys exclusive relationships with many large creditors do to unmatched processing capabilities. d. Our program manages every facet of account activity, from initial referral and through every step of the escalation process