Which Statements Are True About the Nucleotide Excision Repair Process

Which statements are true about the nucleotide excision repair process? (Select all that apply)

A) Endonuclease cuts the DNA backbone then removes a short sequence of nucleotides the contains the error.
B) DNA polymerase I incorporates nucleotides to fill a gap in the DNA sequence.
C) DNA ligase connects the repaired piece of DNA to the original strand.
D) Pyrimidine dimer is repaired by photolyase.