Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a.) CSc1ccc2c(c1)N(CCCN(C)C)c1ccccc1S2
b.) CCOP(=O)(O)Sc1ccc(C)cc1
c.) COc1c(Cl)ccc(Cl)c1C(=O)O
d.) C=CCc1ccc(OC)c(OC)c1
Answer: a
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}