What does lesser mean?

[Taozin]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #258 "US Government Questions Test (6)", question 1

Usually, a political party that holds the lesser amount of seats, or power, within an existing government is called the ......... party.

(a) lesser
(b) minimum
(c) opposition

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #258 "US Government Questions Test (6)", answer 1

Usually, a political party that holds the lesser amount of seats, or power, within an existing government is called the opposition party.

Correct answer: (c) opposition
_________________________

what means lesser?

Taozin

[Diverhank]

Are you sure this is for the US government? For some reasons I haven't heard the term opposition party used...I understand it, just not sure this is commonly used.

[Conchita]

What does 'lesser' mean?

Here is a definition of the term 'lesser'.