The amount from next year's sales that will be derived from the side effects of the sum of the new product to its sales offerings will be $15000.
The calculation for next year's sales that will be derived from the side effects will be calculated thus:
= (Next year sales projection for tents + Next year sales projection for climbing gear) - (Last year sales for tents + Last year sales for climbing gear)
= ($101000 + $158000) - ($98000 + $146000)
= $259000 - $244000
= $15000
In conclusion, the correct option will be $15000.
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