To accommodate these fluctuations and use resources evenly, it would seem reasonable to offer two tiers of  rapid and deferred, with air transportation being used for the rapid product.
( ( To ( ( accommodate ( these ( fluctuations ( and ( use resources ) ) ) ) ) evenly ) ) ( , ( it ( ( would ( ( ( ( seem reasonable ) ( to ( offer ( ( two tiers ) ( of ( ( rapid and ) deferred ) ) ) ) ) ) , ) ( with ( ( air transportation ) ( being ( used ( for ( the ( rapid product ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (TO To) (VP (VB accommodate) (NP (DT these) (NNS fluctuations) (CC and) (NN use) (NNS resources)) (ADVP (RB evenly))))) (, ,) (NP (PRP it)) (VP (MD would) (VP (VB seem) (ADJP (JJ reasonable)) (S (VP (TO to) (VP (VB offer) (NP (NP (CD two) (NNS tiers)) (PP (IN of) (NP (JJ rapid) (CC and) (JJ deferred))))))) (, ,) (PP (IN with) (NP (NP (NN air) (NN transportation)) (VP (VBG being) (VP (VBN used) (PP (IN for) (NP (DT the) (JJ rapid) (NN product))))))))) (. .)))
air transportation is cited as a viable option for the rapid product option.
( ( air transportation ) ( ( is ( cited ( as ( ( a ( viable option ) ) ( for ( the ( rapid ( product option ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN air) (NN transportation)) (VP (VBZ is) (VP (VBN cited) (PP (IN as) (NP (NP (DT a) (JJ viable) (NN option)) (PP (IN for) (NP (DT the) (JJ rapid) (NN product) (NN option))))))) (. .)))