Which sentence is a run-on sentence?
a. the gorilla usually eats only plants; it is mostly vegetarian.
b. octopuses eat bottom-dwelling crustaceans, while squid eat fish and shrimp.
c. fishes' tails move sideways, whales' tails move up and down.
d. in arizona's petrified forest, the trees have turned to stone.

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."

common stockholders usually have the right to vote on major issues affecting the company, like mergers and liquidation of the corporation's assets. they also have part ownership of the company which can then be traded on a secondary market (the stock exchange).

explanation: