Age of Chaucer' started in -

The Middle English Period
I) Anglo-Norman Period (1066 – 1340)
II) Age of Chaucer (1340 – 1400)
III) Barren Age (1400 – 1485)

Source: website Lecture and ABC of English Literature, Dr. Mofizer Rahman.

Geoffrey Chaucer, (born in 1342/43 — died in 1400, London), the outstanding English poet before Shakespeare and “the first finder of our language.”
His The Canterbury Tales ranks as one of the greatest poetic works in English.
Source: Britannica.com

এখানে অপশন বিবেচনায় সঠিক উত্তর - গ) 1350 ধরা হয়েছে। তবে, অপশনে 1343/42 থাকলে সেটি উত্তর করা বাঞ্ছনীয়।