(A) Most of Primatech's regular customers also do business with the federal government.
Eliminated This appears to be irrelevant, as it does not effect the customers' argument.
(B) Almost all of Primatech's employees have received raises in pay during the last year.
Eliminated This is completly out of context for delivery related conclusion
(C) A recent memorandum from the president of Primatech requested that all employees familiarize themselves with the published guidelines for companies doing business with the federal government.
Eliminated This if anything slightly supports the coclusion, as it would appear that Primatech is gearing up to do business with fedderal govt.
(D) Most of Primatech's regular customers order the company's products in bulk and receive discounts for doing so.
Eliminated This again slightly supports the conclusion, as it gives Primatech a motive to delay orders garnering lesser profit than the current ones possibly without the said discounts.
(E) The order placed by the federal government with Primatech does not require delivery for more than a year, while orders are typically placed for delivery within one month.
Suitable As the typical delivery schedule is 1 month, and the deliveries of federal govt have been differed by a year, there should be no manufacturing scheduling conflict if customers' orders were delivered now. Hence the issue must have been with sourcing by the manufacturer.