Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a. CC(C)CC(=O)OC1CCC(N2CCCCC2)CC1
b. CNC(=O)ON=C1CSCCS1
c. Cc1c(Cl)c(=O)oc2cc(OP(=O)(OCCCCl)OCCCCl)ccc12
d. C=CC(=O)NCNC(=O)C=C
Answer: d
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}