The opener for a sales message should be Select one: a. provocative, humorous or entertaining, and medium length (5-10 lines). b. appealing, informative, persuasive, conversational, and medium length (5-10 lines). c. entertaining or serious, focused, persuasive, and short (1-5 lines). d. stimulating, relevant, honest, and short (1-5 lines).

The correct answer is letter A

Explanation:  In that sense something that provokes is something that makes you think, something humorous and that entertains makes you think positively and also makes the environment lighter, something related to size is to facilitate things like handling and in relation to the visual. All of these components are the best when it comes to opener for a sales message.

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