Contextual computing lacks the ability to tailor a course of action to a user in a particular situation and environment based on what it knows about the user.

The answer is "false".

Contextual Computing refers to a computing condition that sees environment, offer suggestions in view of individual need and prerequisite, fitting a game-plan. Contextual Computing takes into consideration for tailoring a course of action to a client in a circumstance and condition in light of what it thinks about the client.

Icannot see any engraving so i cant answer 12.massacre means wholesale slaughter and thats what happend when they the boston citizens