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 additional words.
Options:
a.) O=C(CCCCC(=O)OC1CCCCC1)OC1CCCCC1
b.) C1=C2CCCNC2C2CC1C1CCCCN1C2
c.) CC(=O)c1ccc2c(c1)C(=O)C1(CC1)O2
d.) O=C(OCC(O)CO)c1ccccc1Nc1ccnc2cc(Cl)ccc12
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}