The mosaic virus affects which plant?

The mosaic virus is a group of related viruses that can significantly impact various plants by causing symptoms such as mottled or striped leaves, stunted growth, and reduced yield. In this context, the correct choice involves soybeans, which are particularly susceptible to certain strains of mosaic viruses, notably the Soybean Mosaic Virus (SMV).

Soybeans are commonly affected by this virus, resulting in economic losses due to diminished crop quality and yield. The transmission often occurs through insect vectors, such as aphids, or through contaminated tools and seed. Recognizing the signs of mosaic virus infection in soybeans is crucial for effective management and control.

The other options include plants that are either less commonly affected by mosaic viruses or are typically associated with other types of viral infections. This specificity highlights the mosaic virus's impact on soybeans and illustrates the importance of proper identification in the management of plant health.