What is the prompt of the essay?
Essentially a thesis statement should state your opinion/the main idea of your essay. If a thesis is a question, it is no longer a statement.
Depending on what you will be writing about here are some alternatives that are close to your original thesis:
Social media has negative/positive effects on young adults. (discuss positive or negative effects)
Social media can affect young adults in a variety of ways. (discuss both positive and negative effects)
Young adults are affected by social media in many positive/negative ways. (discuss positive or negative effects)
The sentence which contains a properly punctuate and capitalized direct quotation is C. "Watch how that hummingbird flits from flower to flower," said Diane. Quotation marks always go around the dialogue when writing a direct quote. Capitalization rules still apply much in the same way as they do in regular sentence writing, in that you must capitalize the first letter of the first word at the beginning of a sentence. Punctuation that separates the quote from the speaker must be included with the quotation marks to show that there is a separation.
A summary is a short, concise statement of the most important information in a text. . An objective summary is a summary that does not include any opinions or judgments about what is written in the text. Instead, it only includes information that comes from the text.