Which of the following methods can be used in a scientific investigation? can be more than 1 answer. a. building models to better understand natural events b. using imagination when creating hypothesis and designing experiments c. collecting relevant evidence or data d. using logic and reason when making explanations and conclusions

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.