A client newly diagnosed with relapsing-remitting (RR) multiple sclerosis asks the nurse what this means. Which response is most accurate?

Rationale: A. Relapsing-remitting MS (RRMS) is characterized by periods of relapse, when new or worsening neurological symptoms appear, followed by periods of remission, during which symptoms partially or completely improve. This pattern is typical for the majority of MS patients at diagnosis. B. RRMS is not constant; symptoms fluctuate with relapses and remissions. Persistent symptoms without fluctuation may be seen in primary-progressive MS, not RRMS. This statement misrepresents the disease course. C. Steadily worsening symptoms describe progressive forms of MS (primary-progressive or secondary-progressive), not relapsing-remitting MS. This statement could cause unnecessary anxiety and misunderstanding about prognosis. D. RRMS involves active periods of disease, so the condition does not remain entirely stable. While patients may have long periods of remission, disease activity can still occur, and symptoms may recur. This statement is misleading and inaccurate.