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A biologist hypothesizes that the activity of Enzyme X peaks at a neutral pH of 7.0 and decreases as the environment becomes more acidic or basic. pH | Enzyme Activity (units/min) 5.0 | 15 6.0 | 45 7.0 | 80 8.0 | 42 9.0 | 12 Do the results from the table support the biologist's hypothesis?

1. No; the hypothesis is refuted because the enzyme remains active at pH 5.0 and pH 9.0 rather than stopping.
2. Yes; the results support the hypothesis because the activity at pH 6.0 is higher than the activity at pH 9.0.
3. No; the data is inconclusive because the increase in activity between pH 5.0 and 6.0 is too large to be valid.
4. Yes; the data shows activity increasing up to pH 7.0 and then declining as the pH continues to increase.

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