The time span of the early Harappan phase ranges from:

6000 BCE to 2600 BCE

The correct answer is Option (1) → 6000 BCE to 2600 BCE

“The Harappan Civilisation” is also known as the Indus Valley Civilisation. The term Harappa is derived from the place where the civilization was identified. The total time span of the civilisation ranges from 6000 BCE to 1300 BCE. The early phase, termed as Early Harappan (6000 BCE-2600 BCE) is a formative phase of the civilisation. The urban phase of the civilisation, termed as Mature Harappan (2600 BCE-1900 BCE) is the most prosperous phase. The decline of the civilisation starts around 1900 BCE. This decadent phase (1900 BCE-1300 BCE) is termed as Late Harappan.