Add curved arrow(s) to draw the second step of the mechanism.

Modify the given drawing of the product as needed to show the intermediate that is formed in this step (a sigma complex). Use the (+)/() - notation.

Which of the following choices accurately depicts the second step of the mechanism for this reaction?

a. A straight line connecting the reagents
b. A dashed and solid curved arrow moving from the reagents to the intermediate
c. A solid curved arrow moving from the reagents to the intermediate
d. No arrows are needed for this step