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 additional words.
Options:
a) NC(=O)c1ccc2[nH]c(C(F)(F)F)nc2c1
b) CNC(=O)ON=C(C)SCC(=O)N1CCCC1
c) C=COC(=O)CCCCC(=O)OC
d) O=C1CN2CCOC2(c2ccccc2F)c2cc(Br)ccc2N1
e) CC1CCC(N)CC1N
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}