B. Friar Lawrence tells Juliet to have the Nurse hide the potion for her until she needs it.
This option is NOT part of Friar Lawrence's plan. Friar Lawrence gives Juliet a potion to help her fake her death so she can be with Romeo, but he does not instruct her to have the Nurse hide it for her. Instead, the plan is for Juliet to take the potion herself the night before her wedding to Paris.