Use the following to answer questions :
Refer to the diagram below, showing seed germination. 
-Identify the molecules indicated by D in seed 4. What is their role?
Definitions:
Marginal Cost
The swell in aggregate expenditure tied to the creation of an extra unit of a product or service.
Average Variable Cost
The variable cost (cost that changes with production volume) per unit of output, calculated by dividing total variable costs by the number of units produced.
Profit-Maximizing Level
The point of operation where a business can achieve the highest profit, typically determined by analyzing costs and revenue.
Price
The financial expectation, obligation, or contribution made in payment for something.
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