Which one of the following is a correct statement ?
(a) "Bt" in "Bt-cotton" indicates that it is a genetically modified organism produced through biotechnology.
(b) Classical plant breeding involves fusion of two somatic cells carrying desired genes.
(c) The anticoagulant hirudin is being produced from transgenic Brassica napus seeds
(d) Golden rice is a transgenic variety of rice rich in vitamin E.