How might an entire insect be preserved

a. soft and hard tissues turn the insect into rock

b. tree sap flows over the insect and hardens

c. sediment accumulates over the insect and hardens

d. carbon from the decaying insect leaves a print on a rock

The correct answer is b. tree sap flows over the insect and hardens!

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The insects may be preserved in the tree saps. The tree sap which is generally golden in color, which when flows over the insects, it preserves them. This tree sap hardens as the time passes and turns amber. The hardened amber stone is capable of preserving the softest parts of any insect. By this method, the entire insect can be perfectly preserved for over million of years.

Hence, the correct answer is 'tree sap flows over the insect and hardens'.