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) CCOC(=O)C1OC1c1ccccc1
(b) COC1CCC(OC2CC3(CC(O)C(C)C(C(C)C=C(C)C(=O)C(C)CC(C)C(=O)O)O3)OC2(C)C2CCC(C)C3(OC(C4OC(O)(CO)C(C)CC4C)CC3C)O2)OC1C
(c) CC1(C)C(C=C2CCSC2=O)C1C(=O)OCc1coc(Cc2ccccc2)c1
(d) CCCC(=NOCC)C1=C(O)CC(CC(C)SCC)CC1=O
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}