Help pls my brain be broken

What is the best meaning for obscure in this line from the passage? a) ancient b) dark c) royal d) unknown

12. involves getting to know and recording information about the characters in story such a physical characteristics action and ways in which they relate others characters and to the plot o a. close reading o b. character mapping o c. note-taking p

Where did madame loisel likely lose the necklace? a: at the ministers house b: in the taxi c: on the walk home d: the text gives no hint