Your answer is B. the others do not have four parts and a verb has four principles. im am 100% positive that it is B
D) pioneers believe the Oregon Trail to be sacred because 300,000 people travelled it
Yikes: Interjection. A word to express emotion. In this case kind of frightened.
Huge: Adjective specifies the quality size or amount of nouns or pronouns. In this case very big.
Test. Common noun. These are generic names of things, animals, persons or places.
On Friday. Preposition, specifies location (place) or location in time.
Barely. Adverb, also used to describe adjectives verbs or another adverb. In this case barely is describing the verb study.
Studied. Simple Past tense of verb Study.