Task: Question Answering
Input (English): Which of the following statements about the lanthanide elements is NOT true?
(A)The most common oxidation state for the lanthanide elements is +3. (B)Lanthanide complexes often have high coordination numbers (> 6). (C)All of the lanthanide elements react with aqueous acid to liberate hydrogen. (D)The atomic radii of the lanthanide elements increase across the period from La to Lu.
Output (English): D