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, d, or e without using any other words.
Options:
(a) COP(=S)(OC)SCN1C(=O)CSC1=O
(b) C[n+]1ccc(-c2cc[n+](C)cc2)cc1
(c) O=C1NC(=O)C(c2ccccc2)(c2ccccc2)N1
(d) CCCCC(CC)CCl
(e) CCN(C)N=O
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}