Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a) CC(O)CNC(C)(C)Cc1ccc(Cl)cc1
b) C[N+]([O-])=NCOC1OC(CO)C(O)C(O)C1O
c) OCCOCCN1CCN(C(c2ccccc2)c2ccccc2)CC1
d) CCN1CCCC1CNC(=O)c1cc(Cl)cc(Cl)c1OCc1ccccc1
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}