What Relationship Does The Subordinating Conjunction Express Between The Two Cla

How it works
1. Create account and Place an order
You create an account and place an order and provide any necessary instructions
2. Writer Assigned
We assign your work to our expert writer with the relevant degrees
3. Order Completion
We send the completed paper to your email and accounts
Create an Account and Place an order
What relationship does the subordinating conjunction express between the two clauses in this sentence?
Michelle is not going to cut her birthday cake unless she opens her gift first.
reason
condition
time
place