What is the relationship between 'A350' and 'Airbus' in the context of the input sentence.
Options: distributed by, product/material produced, developer, original broadcaster

And as you would expect, we did everything possible to reduce all nonessential spend, including reaching agreement with Airbus to defer orders of A350 and A321neos, and we're still in negotiation with Boeing on deferrals of the 777-9 program.
developer