Which of the following spellings is correct?

• The correct spelling is - Extraordinarily. (অপশন 'ক')

• Extraordinarily (adjective)
Bangla Meaning: অসাধারণ; সাধারণ নয় এমন বিশিষ্ট।

Example Sentence:
1. She possessed an extraordinarily keen intellect, often solving complex problems effortlessly.
2. The sunset painted the sky in an extraordinarily vibrant array of colours.

Source:
1. merriam-webster.
2. Accessible Dictionary by Bangla Academy.