In response to dwindling sales of organic meats, Hain Celestial executives decided to promote the sale of organically grown nuts as an alternative source of protein, which is an excellent example of a firm's:

Product substitute

Explanation:

Product substitute is defined as one that meets similar needs of the consumer. As demand for one of such goods rises the demand of the other tends to fall as the meet similar needs.

In the given scenario organic meats are seen as being substituted by organically grown nuts as a source of protein.

So when Hain Celestial has dwindling sales of organic meats they were considering organically grown nuts as a different product to give to customers

the answer to this question would be shared investment