What does the word obscure mean in paragraph 11?

A. Mysterious

B. Imaginary

C. Advanced

D. Ordinary

What is the central idea of paragraph 1 of the story?

Choose the sentence that is not logically connected in the paragraph. (1) doctor henderson was a kind and gentle man. (2) his patients loved and respected him. his death made many of them sad. (3) as a young man, he decided to become a doctor and pursue a life of healing and comforting. (4) his work will long be remembered by the citizens of battle creek, michigan.

Which sentence is the most effective in stating the overall purpose of section 4, “confidentiality of user names and passwords? ”