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Option A FMRI stands for "Functional Magnetic Resonance Imaging." This method is employed to gauge brain activity in specific regions by detecting changes in blood flow in those areas, thereby allowing for the identification of brain activity.

Answer: operational definition

Explanation: Dr. Gordon proposed measuring Johnny's hyperactivity by counting the number of instances he moves while conversing, which outlines her operational definition. This specifies the procedures she will employ to understand the nature of the observed issue or phenomenon, termed operational definition.

The correct answer is D) an arrow.Through extensive archery practice, Lois gained a commendable accuracy in hitting targets. The term most closely associated with archery is an arrow. Archery involves using a bow to propel arrows towards a target and is recognized as an Olympic sport. It is widely accepted by anthropologists and historians that early humans utilized bows and arrows for hunting to sustain their families. Archery developed through ancient civilizations, such as the Spartans and Athens, eventually becoming a significant military asset for the Roman Army. Presently, archery is pursued both as a sport and in some modern hunting activities.