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) c1ccc2sc(SN3CCOCC3)nc2c1
(b) CC(=CCCC1(C)C2CC3C(C2)C31C)CO
(c) CSC(C)=NOC(=O)N(C)SSN(C)C(=O)ON=C(C)SC
(d) O=NN(CC(F)(F)F)CC(F)(F)F
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}