The estimate of the background extinction rate is thought to be too low. Which explanation for why the estimate may be low is false ?

A)The rate is likely to increase sharply in the next 50-100 years.
B)Current and projected extinction rates in biodiversity hotspots are higher than the global average.
C)Tropical forests, coral reefs, and wetlands are being fragmented and degraded.
D)Long-term species recovery is threatened by available areas such as tropical forest, coral reefs, and wetlands.
E)The growing human population is using fewer resources per person.