Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a: Cc1cccc(C)c1NC(=O)c1cc(S(N)(=O)=O)c(Cl)cc1O
b: COC(=O)C(C)N(C(=O)c1ccccc1)c1ccc(F)c(Cl)c1
c: C=CCn1c(=O)c2[nH]c(C)nc2n(CCCC)c1=O
d: COc1ccc2c(c1)c(CC(=O)Oc1ccc(NC(C)=O)cc1)c(C)n2C(=O)c1ccc(Cl)cc1
Answer: b
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}