Answer :
Thesis statement is not merely a topic. It is the main idea of a writing assignment that often reflects the writer's opinion about the topic based on personal experience or personal reading. From the thesis statement, supporting sentences will be given to prove said statement to be true. The precise thesis statement among the given choices are 2) Football is an expensive sport. 3) The phonemic system of Russian makes the language difficult to learn.
The correct answers are: "The phonemic system of Russian makes the language difficult to learn," and "The domesticated house cat requires intelligent care if it is to reach its life expectancy. "