[DAT Question of the Day, Click Display Images To See] + Join us on Facebook<http://datquestionoftheday.us4.list-manage.com/track/click?u=d3318065969b7c08ead5d4c4d&id=f567bfd9bb&e=61d7ba7392> + Connect on Twitter<http://datquestionoftheday.us4.list-manage.com/track/click?u=d3318065969b7c08ead5d4c4d&id=1263f9c8fc&e=61d7ba7392> Cytotoxic T-cells Which of the following is the chemical released by activated cytotoxic T-cells to fight a viral infection? A. actin B. perforin C. tubulin D. histamine E. antibodies To see the solution and images, visit the following link: http://datquestionoftheday.com/biology/cytotoxic-t-cells/<http://datquestionoftheday.us4.list-manage.com/track/click?u=d3318065969b7c08ead5d4c4d&id=7bcd640500&e=61d7ba7392>