Which of the following is an effect of first-person point of view? a. the reader is treated to a detailed and very focused account of a single event. b. the reader has the freedom to move around inside the story and is even able to focus on two or more events happening at the same time. c. the reader feels more emotionally detached from the story's narrator. d. the reader can know what every character is thinking or feeling.

First person point of view refers to the description which includes talk about first-person pronouns that is, I, We, Us, Our, Me, mine, myself or my.

Many novels are stories from the point of view of the first person which enables the reader to deepen the insight of the character.  

Hence, option which is an effect of first-person point of view is A. the reader is treated to a detailed and very focused account of a single event.