The digestive tracts of termites contain several species of bacteria. These bacteria produce enzymes that digest cellulose and lignin, the principal components of wood. Which statement correctly describes the association between termites and bacteria?

Bacteria compete for food by harming termites.
Bacteria compete for food by harming termites.

Bacteria obtain food from termites while helping termites digest wood.
Bacteria obtain food from termites while helping termites digest wood.

Bacteria obtain food from termites while harming their digestive tracts.
Bacteria obtain food from termites while harming their digestive tracts.

Bacteria compete for food without harming or helping termites.