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 other words.
Options:
a) O=[N+]([O-])c1cc2[nH]c(C(F)(F)F)nc2cc1Cl
b) CC(=Cc1ccccc1)CC(=O)N1CCOCC1
c) C=CC(C)=CCCC(C)(C)O
d) CCCCOC(=O)CC(SP(=O)(OC)OC)C(=O)OCCCC
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}