D the answer is d because it shows the NASA worker needs to make sure they have enough time and etc.
Subordinate clause this is the answer its just making me type more to post this as my answer
The correct answer would be B, since complex sentences have 1 independent variable and one dependent variable.
The dependent variable would be: Everytime he hears a siren
Why? Because it is not a complete thought.
The independent variable would be: My dog howls loudly.
Why? This statement is a complete thought.
A would be a compound sentence
C would be a simple sentence
D would be compound complex.
Hope I could help!
Answer:
Its C im not guessing bc i did this already
