This is an analogy question. The task is to identify the relationship between "Pen" and "Write" and apply it to "Knife" and a given option.
Relationship between Pen and Write: A pen is a tool whose primary function is to write.
The established relationship is:
Tool : Primary Function.
Applying this to Knife: A knife is a tool. Its primary function needs to be identified from the options.
- (a) Eat: Eating is an action performed by a person, not the primary action of a knife. While a knife might assist in eating, it is not its core purpose.
- (b) Cut: The fundamental purpose and action of a knife is to cut.
- (c) Sharpen: Sharpening is a maintenance procedure for a knife, not an action it performs.
- (d) Carve: Carving is a specific type of cutting. "Cut" is the more general and primary function, encompassing carving.
The most accurate and primary function of a knife is to
cut.Therefore, the analogy is:
Pen : Write :: Knife : Cut.This follows the pattern of Tool : Primary Function.\[\boxed{\text{Cut}}\]