Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a. CCOP(=O)(OCC)SCc1nnc(CC)o1
b. O=C(C(F)(F)Cl)C(F)(F)Cl
c. CCOP(=O)(OP(=O)(OCC)N(C)C)N(C)C
d. C=CCNP(=O)(OC=C(Cl)Cl)OC1CCCCC1
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}