The proper agreement between subject and verb can be seen in the sentence: The girls want to go to the store to get cookies for their holiday party.
We can arrive at this answer because:
Agreement between verb and subject occurs when the verb is correctly conjugated with the subject of the sentence.
The verb is the word that indicates an action that takes place in the present, past, or future, and the subject is the word that presents the person or thing that is promoting or suffering the action of the verb.
In this case, we can see the verb "to want" and "to go" in the sentences above and the subject is "The girls."
"The girls" is associated with the pronoun "they" which requires the verb to be conjugated as "want" and "go."
Therefore, we can recognize that the correct answer is the sentence:
The girls want to go to the store to get cookies for their holiday party.
You can have more information about the concordance between verb and subject at the link:
The answer that correctly completes the sentence is "had run." This sentence is in the past tense and so only verbs in the past tense or past perfect tense can be used to complete the sentence. 'Had run' is in the past perfect tense which indicates an action that already has happened.
In the case of run, the verb is in the present tense.
In option C, have run, the verb used is in the present participle tense.
Option D, is wrong because there is no verb as runned in the English language. Past tense for run is ran.