## Core Concept
Next-generation sequencing (NGS) refers to a group of technologies used for determining the sequence of nucleotide bases in a genome or segment of DNA or RNA. This approach enables the simultaneous analysis of millions of DNA sequences in a massively parallel manner, significantly increasing the speed and reducing the cost of genetic sequencing compared to traditional Sanger sequencing.

## Why the Correct Answer is Right
The correct answer likely highlights a key feature or application of next-generation sequencing. NGS technologies, such as Illumina sequencing, Ion Torrent sequencing, and others, have revolutionized genetic research and diagnostics by allowing for the rapid and cost-effective sequencing of genomes. They are pivotal in fields like genomics, transcriptomics, and epigenomics.

## Why Each Wrong Option is Incorrect
- **Option A:** Without specific details on what option A states, it's challenging to provide a direct refutation. However, common misconceptions about NGS might include its limitation to only sequencing DNA; in fact, NGS can also sequence RNA, facilitating transcriptome analysis.
- **Option B:** Similarly, without specifics, one might guess that option B could pertain to the cost, speed, or accuracy of NGS. If it inaccurately represents these aspects, it would be incorrect. For instance, if it suggests NGS is more expensive or slower than Sanger sequencing for certain applications, it would be wrong.
- **Option C:** This option's accuracy depends on its content. If it inaccurately describes an application, limitation, or technical aspect of NGS, it would be incorrect.

## Clinical Pearl / High-Yield Fact
A crucial point to remember is that **NGS allows for the identification of rare genetic variants and can be used in non-invasive prenatal testing (NIPT)**, among other applications. This technology has significantly impacted personalized medicine, enabling targeted therapies based on genetic profiles.

## Correct Answer: B