Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) CNC
(b) OCC(CO)(CBr)CBr
(c) O=C(OCCCOC(=O)c1ccccc1)c1ccccc1
(d) CCOCCOCCOC(C)Oc1ccc2c(c1)OCO2
(e) Cc1nc(C)c(C(=O)Nc2ccccc2)s1
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}