C) Diffuse depletion of white pulp with lymphocytolysis and necrosis.

home healthcare robots such as the one that appeared in the movie Robot & Frank

The Leaning Tower of Pisa is a freestanding bell tower.

The following paradox (and also axiom) of material implication: P→(Q→P) could be taken to mean the monotonicity of entailment, that is, if 'P' is true then no other or new fact 'Q' should be able to arise which would imply the nullification of P's truth, i.e., it could not be the case, for any 'Q', that Q → ¬P.