Question

At this time, communication ...........sea through wireless was new and the benefits not well appreciated so the wireless on ships ................. often not operated around the clock.

O a. at, was
b. in, was
O c. at, is
Od, in, is​

Answer 1

At this time, communication .....at......sea through wireless was new and the benefits not well appreciated so the wireless on ships ......was........... often not operated around the clock. (option a)