'সকাল থেকে গুঁড়ি গুঁড়ি বৃষ্টি হচ্ছে '--The correct translation of this sentence is -------
ক) It is raining since morning.
খ) It has been being raining since morning.
গ) It has been raining for morning.
ঘ) It has been raining since morning.