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Many pulsars have periods that are gradually getting longer as the spinning neutron stars lose energy.
SPIN Approach
A sales technique that focuses on Situation, Problem, Implication, and Need-Payoff questions to understand a prospect's needs and sell more effectively.
Fourth Category
A classification term that could refer to the additional grouping in a set, often used when items are divided into several distinct types.
Need-Payoff Question
A sales technique question that aims to make the customer articulate the benefits of solving a problem, emphasizing the value of the proposed solution.
SPIN Approach
A sales technique that involves asking Situation, Problem, Implication, and Need-payoff questions to better understand customer needs.
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