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, d, or e without using any other words.
Options:
a CCCCC(CC)COP(=O)(O)OCC(CC)CCCC
b CCCCC(CC)C(=O)O[Si](C)(OC(=O)C(CC)CCCC)OC(=O)C(CC)CCCC
c CCCCSSC(Cl)C(Cl)Cl
d CCCCOCCOCC
e CC(=O)NNC(=O)c1ccccn1
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}