单选题 After an hour's discussion, the curriculum designers and computer programmers reached a consensus: that the new package of language learning materials should be both amusing and ______ for the users.
【正确答案】 A
【答案解析】enlighten启发，启迪；force强迫，强加；engulf吞没，狼吞虎咽；enjoin吩咐，命令。