Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) COc1cc(-c2ccc(N)c(OC)c2)ccc1N
(b) CCCCN(CCCC)N=O
(c) CCO[Si](C)(C)OCC
(d) CCCOCC(C)O
(e) O=C(O)c1ccccc1-c1ccccc1CO
Answer: c
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}