(big ups to the person who reads all of this ))

when he had brought down his game, he noted carefully every feature of his surroundings so that he might at once detect anything unusual, and tied his horse with a long lariat to the horn of the dead bison, while skinning and cutting up the meat so as to pack it to camp. 14 every few minutes he paused in his work to scrutinize the landscape if he had a feeling that danger was not far off.

read the passage. look at the underlined section marked number (14). there is a revision needed to improve clarity. which of these is the best revision?

a) every few moments he paused in his work to scrutinize the landscape if he had a feeling that danger was not far off.
b) every few minutes he paused in his work to scrutinize the landscape if he has a feeling that danger was not far off.
c) every few minutes he paused in his work to scrutinize the landscape as if he had a feeling that danger was not far off.
d) every few minutes he paused in his work as if to scrutinize the landscape if he had a feeling that danger was not far off.