Are the underlined words in the sentence an independent clause, a subordinate clause, or neither?

Since early this summer, my friends and I have been riding our bikes every evening.

the underlined sentence is Since early this summer

A. neither
B. independent clause
C. subordinate clause

Question

Are the underlined words in the sentence an independent clause, a subordinate clause, or neither? 

Since early this summer, my friends and I have been riding our bikes every evening.

the underlined sentence is Since early this summer

A. neither
B. independent clause 
C. subordinate clause

hoblos · Answer

it is an incomplete sentence, it depend on what follow it to complete the meaning
so it's an independent clause

destinymasha · Answer

Yup, its an incomplete sentence -so its a dependent clause, it needs an independent clause [complete sentence] to make it make sense-or express a complete thought

hoblos · Answer

oahh i'm wrong my bad :S
@Destinymasha is right it's subordinate clause

hoblos · Answer

I meant dependent in my first reply but i wrote it wrong lol sorry

linn99123 · Answer

@CrazyCountryGirl  what was the asnwer?

linn99123 · Answer

Ohh kk thanks :*

anonymous · Answer

It's neither. Just.... neither.

anonymous · Answer

@ashlyvaldez How did you even find this question? Plus it doesn't exactly matter anymore...