The AB Sustainable US Thematic Portfolio - Class C (SUTCX) is a mutual fund that focuses on investing in companies that align with sustainable and socially responsible themes in the United States. This fund aims to provide long-term growth and capital appreciation by investing in companies that prioritize environmental, social, and governance (ESG) factors. The Class C shares of this fund have a lower expense ratio and are suitable for investors looking for a more affordable option. With a focus on sustainability and responsible investing, the AB Sustainable US Thematic Portfolio - Class C offers a unique opportunity for investors to support companies that are making a positive impact while potentially earning returns on their investment.