Which is the best example of a flashback?

a. a scene from the past that explains the character's present behavior
b. a summary of the present situation that sheds light on the action
c. a scene from the future that shows the importance of the present moment
d. a summary about the past that describes a change in the character

its c because its his point of view

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.  

what were the pronouns? did it use i, me, and my? if so, it was first person. if it had pronouns like you and your it was second person point of view. if it used he, she, and they, it was 3rd person point of view.