What is the plural of 'datum'? MCQ with Answer and Explanation

Explanation:
Latin: larva -> larvae.

Explanation:
'Poetry' is an uncountable noun; 'poem' is countable.

Explanation:
'Politics' as a subject or concept is singular: 'Politics is a dirty game.' However, when referring to personal beliefs, it can be plural: 'His politics are leftist.' So both are possible, but typically singular. I'll put A, but mention in solution.