Which aspect of language may be expected to be almost identical in American English and British English?

A. spelling

B. slang words

c. literary terms

d. pronunciation

There are differences between American English and British English. Primarily on the pronunciation, there are words like schedule, versatile, mobile, advertisement, etc. Another one is the use of slang words like rubbish, counterclockwise, attorney, lorry, etc. The literary terms also follow to be different. the one that has the minimal difference is the spelling although there are differences like center/centre, color/colour, etc. Answer is A