Final answer:
Option c, 'We trekked up the mountain with thirty-pound packs on our backs', is the correct answer as it is the only option that constitutes a complete sentence with a subject and a predicate, expressing a complete thought.
Step-by-step explanation:
The question asks which of the given options is a complete sentence. A complete sentence typically contains a subject that does who or what the sentence is about, and a predicate which tells something about the subject. It also expresses a complete thought. Looking at the options:
- Option a, 'Made both of the pie crusts with lard instead of butter', lacks a subject performing the action.
- Option b, 'Jordan graduating with a degree in Russian literature', is missing a proper verb to link the subject Jordan and the action of graduating.
- Option c, 'We trekked up the mountain with thirty-pound packs on our backs', has both a subject 'We' and a predicate 'trekked up the mountain with thirty-pound packs on our backs', making it a complete sentence.
Therefore, the correct answer is Option c, which is the only complete sentence that conveys a complete thought and has the necessary components of a sentence.