Question

Refer to the following number series and answer the question that follows. All numbers are single-digit numbers only. Counting to be done from left to right only. (Left) 4 8 7 6 3 3 1 6 3 9 6 4 9 4 6 3 4 5 1 4 1 3 7 2 6 (Right) How many such numbers are there, each of which is immediately preceded by a perfect square and also immediately followed by a perfect square? (Note: 1 is also a perfect square.)

A Two
B Four
C Three
D One
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