Which of the Following Steps Comes First in Next-Generation Sequencing

Multiple Choice

Which of the following steps comes first in next-generation sequencing?

A) Amplification of the DNA sample by polymerase chain reaction (PCR) .
B) Fragmentation of the DNA sample into smaller pieces.
C) Addition of adapters to the ends of the DNA sample to allow amplification by PCR.
D) Separation of the DNA sample by electrophoresis to ensure uniform lengths.