Multiple choice

Directions: Fill the blanks with most appropriate answer from the given options. This mutant strain of bacteria appears to be ________________.

  1. affable

  2. arrogant

  3. despicable

  4. invincible

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

"Invincible" is correct because in scientific and medical contexts, when referring to bacteria or diseases, this term means unable to be defeated or treated (like antibiotic-resistant strains). "Affable" means friendly, "arrogant" means overly proud, and "despicable" means contemptible - none of these would be used to describe a bacterial strain in a scientific context.