Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a) O=P(OCCCl)(OCCCl)OCCCl
b) CCOC(=O)C1(c2ccccc2)CCN(CCOCC2CCCO2)CC1
c) CCCCC(CC)COCCO
d) CCCCCOc1cccc(NC(=O)OC2CCCCC2N2CCCC2)c1
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}