Three fundamental controls seem to have been subverted in essentially every type of cancer. Choose these three among the following regulatory axes. Your answer would be a three-letter string composed of letters A to F only, in alphabetical order, e.g. BDF.
(A) Wnt pathway
(B) Rb pathway
(C) RTK/Ras/PI3K pathway
(D) p53 pathway
(E) Hippo pathway
(F) GPCR/PKA pathway