In the Bitcoin blockchain the "block creation time" is set to 10 minutes and this can never change.

In the Bitcoin blockchain the "block creation time" is set to 10 minutes and this can never change.
A . FALSE
B . TRUE

Answer: B

Explanation:

Remember, that the block creation time is set to 10 minutes and this can never change. So after a fixed time of approximately 2 weeks or exactly 2016 blocks the difficulty is re-adjusted. Increase in difficulty means target decreases.