Answer: C. It is not specific.
Explanation: a business message is used within a business setting for internal or external communication. For a business message to be fit for use, it has to be accurate, clear and specific. The complexity of the message should be suited to the audience, with the purpose of the writing clearly stated.
Here, Hugo’s sentence is not specific, it does not specify how much the profits have really increased. "The increase in profit is 10% greater than last year's profit" is a better sentence.