Respuesta :
Sentence D is different from the others.
The other options (A-C) begin with a dependent clause and a comma - option D does not.
Definitely D. if you read them carefully they're are a few differences.
Option A,B, and C is wrong because there is one independent clause and one dependent even though they are all structure correctly without a conjunction.
They also all have commas and the last option is two independent clauses