I think the most logical answer from my research is option c.
I'm not sure, but I tried.
Check out this website: http://www.notablebiographies.com/Ch-Co/Chaplin-Charlie.html .
It's really detailed and might help you find answers to your question.
The topic sentence for the paragraph above is A. Sentence 1. A topic sentence is supposed to give the general idea of a paragraph. Sentence 1 briefly describes what and where plates are in the Earth's crust. The rest of the sentences give more detail about tectonic plates.
I would say the 2nd option. Improved energy and boosts mood
One of the problems that accompanies articulation is poor or improper pronunciation. If a person finds it hard to form clear sounds in speech, it means that it is sometimes hard to speak, therefore it is hard to pronounce some words in a correct way. Such problems can be solved, but it is hard work that must be developed during whole life of a person.