Choose the correct synonym of the word highlighted in each sentence from the alternatives given below it. It has been raining incessantly since morning 

Explanation: Incessantly (highlighted word): "Incessantly" is an adverb that means without interruption, continuously, or unceasingly. In the context of the sentence, it suggests that the rain has been ongoing without a break.   Options:   (a) Slowly: This option does not convey the same meaning as "incessantly." "Slowly" refers to the speed of an action, not the continuity. (b) Constantly: This is the correct synonym for "incessantly." Both words convey the idea of something happening continuously without a pause. (c) Intermittently: This is the opposite of "incessantly." "Intermittently" means occurring at irregular intervals, with breaks or pauses. (d) Heavily: This option refers to the intensity of the rain, not necessarily its continuous nature. It is not a synonym for "incessantly."