Select the word that is in plural form.

• Fora (plural of forum):
Meaning - Situation or meeting in which people can talk about a problem or matter especially of public interest. 

• কিছু বিদেশী শব্দ রয়েছে যেগুলোর singular-plural স্বাভাবিক নিয়মে হয় না। নিম্নে বিদেশি ভাষা থেকে আগত কিছু উল্লেখযোগ্য শব্দের singular-plural form দেওয়া হলো:

Singular → Plural
Datum → Data;
Phenomenon → Phenomena;
Forum → Forums, Fora;
Oasis → Oases;
Radius → Radii;
Medium → Media;
Formula → Formulas;
Focus → Focuses / Foci;
Crisis → Crises;
Curriculum → Curricula;
Analysis → Analyses;
Agendum → Agenda;
Ultimatum → Ultimata / Ultimatums;
Criterion → Criteria;
Index → Indexes (in books), Indices (in mathematics).

Source: A Passage to the English Language by S.M. Zakir Hussain.