Which food law prohibits certain grains at Passover?

The prohibition of chametz is a key aspect of Jewish dietary laws during Passover. Chametz refers to any leavened products made from five specific grains: wheat, barley, rye, oats, and spelt that have fermented. During the festival of Passover, observant Jews avoid these leavened items as a way to commemorate the exodus from Egypt, symbolizing the haste with which the Israelites left, not allowing their bread to rise.

The holiday emphasizes the importance of consuming only unleavened bread (matzah) which is free from chametz, as a means to reflect on the themes of liberation and humility. This prohibition is rooted in biblical texts, primarily found in the Torah, which state that no leavened bread or its ingredients should be found in Jewish homes during Passover.

While the other choices relate to different aspects of Jewish dietary laws, they do not pertain specifically to the restrictions surrounding Passover. Understanding this context enhances comprehension of why the prohibition of chametz is central to the Passover celebration and its observance.