Which one of the following statements is not correct about Biosphere R

Which one of the following statements is not correct about Biosphere Reserves ?

They are protected areas meant for conservation of Biodiversity
Each Biosphere reserve has three zones
There is a network of biosphere reserves world over
They were first started by IUCN (International Union for Conservation of Nature and Natural Resources)
This question was previously asked in
UPSC CAPF – 2009
The statement that Biosphere Reserves were first started by IUCN (International Union for Conservation of Nature and Natural Resources) is not correct.
Biosphere Reserves were initiated by UNESCO (United Nations Educational, Scientific and Cultural Organization) under its Man and the Biosphere (MAB) Programme, which was launched in 1971.
A) They are protected areas meant for conservation of Biodiversity: This is correct. Biosphere reserves aim to conserve biodiversity and promote sustainable use of natural resources.
B) Each Biosphere reserve has three zones: This is correct. The typical zonation includes a core area (strictly protected), a buffer zone (allowing limited activities compatible with conservation), and a transition area (allowing sustainable economic and human activities).
C) There is a network of biosphere reserves world over: This is correct. Biosphere reserves form a global network under the MAB programme.
IUCN is a prominent international organization involved in nature conservation but did not originate the biosphere reserve concept.