In RearWindow, duringthescenewhereJeffries watches Thorwaldcome andgo duringthe night, viewers seem to seeJeffries respondingto the events hewitnesses outsidehis window. The editing achieves this effect by

a. maintainingthepropersequencingofnarrativeevents
b. establishingtempo andmood
c. implying associations between shots
d. establishingcontinuity

c