Xeroderma Pigmentosa $($XP$)$ is a human disorder that leads to extreme light sensitivity$,$ frequenct neurological defects, and an elevated risk of cancer. This disorder is associated with a deficiency of which DNA repair pathway?

Base Excision Repair $($BER$)$

Mismatch Repair $($MMR$)$

Homologous Recombination $($HR$)$

Nucleotide Excision Repair $($NER$)$

Non$-$Homologous End Joining Repair $($NHEJ$)$