Step 1: Error Identification.
"Saira" is a singular subject. Consequently, the auxiliary verb "does" is required for subject-verb agreement.
Step 2: Option Analysis.
- (A) How does: Correct. "Does" agrees with the singular subject "Saira."
- (B) How did: Incorrect. The past tense "did" is inappropriate for the present context.
- (C) How does not: Grammatically incorrect. "Does not" is for negative statements, not questions.
- (D) How has: Incorrect. "Has" denotes the present perfect tense, while the sentence uses the simple present.
Step 3: Conclusion.
Option (A) "How does" is correct due to proper subject-verb agreement.