Rank the following in order from most acidic to least acidic.

a) rainwater, coffee, bleach, soap
b) coffee, rainwater, soap, bleach
c) soap, bleach, coffee, rainwater
d) bleach, soap, rainwater, coffee

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i