The lifespan of Red Blood Cells is __________ days? January 22, 2021 / By Preparation Point / Everyday Science Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedInA. 60 B. 120 C. 180 D. 240 Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn