سوال ۲ کنکور ارشد علوم کامپیوتر ۱۴۰۰

The blank modifies 'advantage' and must mean a benefit shared by all parties. 'Mutual' means shared or reciprocal, and 'mutual advantage/benefit' is a fixed collocation; the clause 'we will all benefit greatly from it' confirms the benefit is shared. 'Concurrent' means happening at the same time, 'devoted' means loyal/dedicated, and 'involved' means engaged or complicated — none describes a shared benefit, and none collocates with 'advantage' here.