The question asks for the meaning of the Igbo word ije. In Igbo, "ije" is a noun derived from the verb "ije" or "iga" (to go/to walk). It refers to a journey, travel, or the act of walking/going along a path.
The correct meaning is Iga n'uzo (going on the road/travelling/journeying). When someone says "o na-aga ije" in Igbo, it means "he/she is going on a journey" or "he/she is walking." The word fundamentally describes movement from one place to another on foot or by travel.
The other options do not match: "Igu akwukwo" means reading or studying, "Iru oru" means working, and "Igba oso" means running. While running involves movement, "ije" specifically denotes walking or journeying at a normal pace, not running.