【单选题】The expression \"step back in time at least a hundred years\" ( Line 2, P
A.
The expression /"step back in time at least a hundred years/" ( Line 2, Para. 2) is intended to convey the idea that________ A.college classrooms often reminded people of their college life
B.
critical thinking was encouraged even a century ago
C.
a hundred years ago, desk arrangement in a classroom was quite different
D.
there is not much change in educational idea over the past hundred years