The option that is not part of Friar Lawrence’s plan to help Juliet reunite with Romeo is:
B. To have the nurse hide the potion for her until she needs it.
In the play, Friar Lawrence does not instruct the Nurse to hide the potion; instead, he gives the potion directly to Juliet with instructions on how and when to use it. The other options are in line with his plan to help Juliet.