If the US modifies techniques for timber management, it is expected that US forests will a. not be able to meet long term timber needs

Incomplete question. The full question read;

If the US modifies techniques for timber management, it is expected that US forests will

a. not be able to meet long term timber needs

b. be able to meet long term timber needs

c. result in deforestation

d. provide increasingly cheaper timber

b. be able to meet long term timber needs

Explanation:

Remember, the emphasis here is on the modification of the present techniques for timber management in order to boost productivity.

Hence, we can conclude that since there would be an improvement in production efficiency, the US would be able to meet its long-term timber needs.

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