Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a. O=C(CO)C(O)C(OC1OC(CO)C(O)C(O)C1O)C(O)CO
b. Cc1cc([N+](=O)[O-])ccc1[N+](=O)[O-]
c. CSc1ccccc1
d. COP(=S)(OC)SCSc1cc(Cl)cc(Cl)c1
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}