The difference between “lie” and “lay” is that “lay” must be followed with a(n)

The difference between "lie" and "lay", is that lay is to place something in a position of use, and lie is to, be still or to be kept in a specified place. 

Example for lay: "it is recommended to have your tile laid by professionals" 
Example for lie: "The dress lay still on the bed "

After going through the poem, we can easily interpret what the poet wants to convey. However, we are given several options to choose from. The imagery utilized by the poet affects the readers in the following ways:

Opt 1- It definitely creates a visual of the skinny man.

Opt 2- It also conveys sounds to create a more engaging frame for the reader.

Opt 3- These imagery elaborates the actions done by the boy.

Opt 5- Following this, the imagery boosts the readers to care for the character.