In the context of parliamentary democracy, why is compulsory voting significant?

In the context of parliamentary democracy, why is compulsory voting significant?

• AIt emphasises that taking part in elections mattersCorrect
• BIt means elections are unimportant
• CIt removes the need for public participation
• DIt shows that only parliament participates in elections

The fact links compulsory voting with the importance of participating in elections, so its significance is that it emphasises electoral participation.