Question

read the story.
the correspondent
1 there was a longstanding mystery in my family that revolved around my father and his sister, my aunt allison: she and my dad never got along. i didnt know why. but whenever i pressed my dad, he wouldnt tell me anything. he said they were like \oil and water\—they just didnt mix.
2 as an aspiring journalist, i wasnt buying it; i knew there had to be some dirt. my grandparents upcoming fiftieth wedding anniversary party would give me the chance to find it.
3 the event was held in a lodge at the top of mount pronghorn, a favorite
based on the first and second paragraphs, what does isabella mean when she says \there had to be some dirt\?
she believes the past is buried and not worth investigating.
she trusts her dads explanation about why he and allison dont get along.
she thinks her dad is hiding something from her.
she worries that her grandparents anniversary will be a disaster.

Explanation:

The phrase "there had to be some dirt" is an idiom meaning there is hidden, unspoken information or a secret. Isabella, an aspiring journalist, does not accept her father's vague "oil and water" explanation for his rift with Aunt Allison, so she suspects he is concealing a specific, unstated reason.

Answer:

She thinks her dad is hiding something from her.