Choose the most suitable one-word substitution for the following.
An athletic event comprising ten different events.

Correct option is A

The correct option is (a).

Explanation:
The correct one-word for the given group of words is Decathlon. It is derived from the Greek word 'deka' meaning ten and 'athlon' meaning contest. (दस खेलों की प्रतियोगिता)
Example: Winning the Olympic decathlon is often considered the ultimate test of an athlete's versatility.

Meanings of the given other options:

• Pentathlon: An athletic event comprising five different events. (पेंटाथलॉन/पाँच खेलों की प्रतियोगिता)
• Tetrathlon: A multi-sport event consisting of four different events. (टेट्राथलॉन/चार खेलों की प्रतियोगिता)
• Heptathlon: An athletic event comprising seven different events. (हेप्टाथलॉन/सात खेलों की प्रतियोगिता)