Final answer:
Based on combined state and local spending data, education emerges as the sector that likely receives the largest percentage of corporate cash and in-kind contributions, especially at the local level for public schooling.
Step-by-step explanation:
To determine which sector receives the largest percentage of corporate cash and in-kind contributions, it is important to understand the distinction between government aid and corporate contributions. While government spending in areas like agriculture and energy is significant due to their effect on consumers, corporate contributions are often directed elsewhere. According to statistics on combined state and local spending, it is education that emerges as the largest area of spending, particularly at the local level where it provides for public education at the elementary and secondary levels.