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) CC(C)=CCC(CCN1CCCC1)(C(N)=O)c1cccc2ccccc12
b) CC=CCCCCCCCC(=O)OC
c) CCCCOP(=O)(O)OCCCC
d) COP(=O)(OC)OC(Br)C(Cl)(Cl)Br
Answer: d
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}