Biology · Molecular Biology & Cellular Functions

With reference to extracellular RNA (exRNA), consider the following statements: I. It refers to RNA molecules detected outside cells, including in circulating or secreted body fluids. II. It constitutes a wholly separate class of RNA produced exclusively for intercellular signalling and not otherwise found within cells. III. It may be carried in extracellular vesicles or associated with other protective carriers that reduce its degradation outside the cell. Which of the statements given above is/are correct?