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Answer:
A)
Step-by-step explanation:
Pattern of upper half: 1, 3, 6, 3, 1
Pattern of lower half: 1, 1, 1, 3, 5
Repeat the patterns:
1, 3, 6, 3, 1, 1, 3, 6, 3, 1
1, 1, 1, 3, 5, 1, 1, 1, 3, 5
Answer: A)