Many Companies Add Brands to Their Portfolio Via Acquisitions of Local

Many companies add brands to their portfolio via acquisitions of local companies. When the local brand is retained but incorporated into the existing communications
Strategy, the strategy can be described as being one of:

A) product and communication extension--dual extension.
B) product invention.
C) product extension--communications adaptation.
D) product adaptation--communications extension.
E) product and communications adaptation--dual adaptation.