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, or d without using any other words.
Options:
(a) CCN(CC)CCSC(=O)N(c1ccccc1)c1ccccc1
(b) C=CC(=O)OCCN(CC)CC
(c) Cn1cnc2c1c(=O)n(CCCN1CCN(c3ccc(Cl)c(Cl)c3)CC1)c(=O)n2C
(d) CC(C)(C)N
Answer: a
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}