Correct option is A
The correct option is 1600 BCE.
Information Booster
Hittite Language: The earliest known written evidence of an Indo-European language is from the Hittite language, which was spoken in ancient Anatolia (modern-day Turkey).
Dating of Inscriptions: The oldest surviving Hittite texts are preserved on cuneiform clay tablets and date to approximately the 17th century BC.
Earliest Text: The "Anitta Inscription," considered the oldest known Hittite text, is dated to the 18th century BCE. Other texts from around 1650 BCE are also cited as early examples. The date 1600 BCE falls within this period and is the closest correct option provided.
Additional Knowledge
1400 BCE: This date is associated with the earliest widely accepted Mycenaean Greek inscriptions in Linear B script, which are also an early Indo-European language, but they are not the earliest known.
2100 BCE and 1900 BCE: These dates are too early for the oldest known written Indo-European languages, which first appear around the 17th-18th centuries BCE.