Mounting pressure on suppliers for price cuts comes as Airbus and Boeing are raising production of their single-aisle models to around 50 aircraft a month each, up from 42 a month, and pondering a further step-up to 60 a month.
Take context from the input text and decide on the accurate relationship between 'Airbus' and 'aircraft' from the options provided.
Options: operator, publisher, product/material produced, original broadcaster