Read the extracts given below and complete the statements that follow :
“And now there came both mist and snow,
And it grew wondrous cold,
And ice, mast high, came floating by
As green as emerald.”
(a) It grew wondrous cold because ...........
(b) The floating ice was ...........
(c) The poetic device used in the last line is ...........
(d) The sailors are in the ......... .