Scientific evidence is most likely to be consistent if it is based on data from
a) random samples
b) uncontrolled experiments
c) biased experimental designs
d) small data samples

"A) random samples"

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].