Answer: A. Tigers play a crucial role in the Indian ecosystem, and their extinction would have devastating and wide-ranging consequences in that country.
Explanation: The purpose of the thesis statement is to summarize the main point of the essay. It states that tigers are important to the Indian ecosystem, and the thesis can be built off of why tigers play such an important role. The other options are incomplete or not strong enough to reiterate an essay.
Meter - Meter is a stressed and unstressed syllabic pattern in a verse, or within the lines of a poem. Stressed syllables tend to be longer, and unstressed shorter. In simple language, meter is a poetic device that serves as a linguistic sound pattern for the verses, as it gives poetry a rhythmical and melodious sound