Graphene based nanoelectronic devices will...a. Be slower, more power consuming than silicon and much thicker. b.Be faster, less power consuming than silicon and much thinner. c.Be slower without consuming power like silicon. d.Be slower and more power consuming than silicon.

.b.Be faster, less power consuming than silicon and much thinner

Explanation:

Graphene has a very high electrical conductivity due to its pi orbitals overlap that enhance the carbon to carbon bonds. This means that a nanoelectronic devise that uses graphene will be faster and will consume less powe and it will be thinner because graphenes have a size of 0.345Nm.

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t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.