Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a) Oc1cc(O)cc(Sc2cc(O)cc(O)c2)c1
b) CC(C)N1C(=O)N(c2ccccc2)CSC1=NC(C)(C)C
c) CC(C)(C)C(=O)CCC1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
d) CC(=O)c1c2c(c(C)[nH]c1=O)CC(c1ccncc1)CC2
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}