which of the following is true regarding the inner transition elements?

A. their valence electrons can be located in both s and f sublevels
B. They occupy the d block of the periodic table
C. These include the lanthanides and actinides and do not have f sublevels
chemistry
D. These include all elements in groups 3-12

2 answers

I've been waiting on you to show some work and that hasn't happened yet. Please indicate your answers and why you think that is the answer.
nvm its not c sorry