Samira went to a party with a new friend, saul. saul drove but then used illegal drugs at the party. he is not safe to drive. as the party dies down, saul tells samira that it's past his curfew and time to go home.

which is the best example of assertive refusal that samira could use to keep herself safe?
a. samira looks away and says no every time saul tells her to get in the car. samira tells him she still wants to stay at the party.
b. samira looks away and firmly says no at first, but later she gets in the car and lets saul drive her home.
c. samira stands up straight and shakes her head, but then she gets in the car and lets saul drive her home anyway.
d. samira stands up straight, shakes her head, and firmly says no every time saul asks her to get in the car. she then waits for her aunt to come pick her up.