When do we use dashes in writing??

We use dashes in writing for a stop in the middle of a sentence, especially a quote or something like that. It can also be used in between period of time.

Example:

a. "Wait-", she said. "What was that?"

b. I lived in Chicago from 2006-2012.

Hope this helped clear things up!

the correct answer is: d

even though there may be variations in human emotions over time, the poem “ a contribution to statistics” by wislawa symborska suggests that the only unchangeable characteristic is mortality.

the author poses a distinction between the approximate and non-approximate numbers which correspond to our need for certainty in life and the difficulty of achieving it. our efforts to measure the exact often fail because the world is not always clearly structured .the poem seems to imply   that the only thing that is certain and has an exact number is death.