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. O=S1c2ccccc2N(CCCN2CCN(CCO)CC2)c2cc(Cl)ccc21
b. C=CC(=O)N(CC)CC
c. CNC(=O)Oc1cccc2c1OCCO2
d. Clc1nc2ccccc2nc1Cl
e. CCCCCCCCCCCCCCCCCCN
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}