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) O=C(O)Cc1ccccc1Oc1c(Cl)c(Cl)cc(Cl)c1Cl
b) CCOC(C1=NCC(OC)CN1)c1ccccc1
c) Clc1ccc(Cl)cc1
d) CCCCCCCc1cc(C)c(O)c(C)c1
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}