The Galaxy Nexus (GT-I9250) is a touchscreen Android smartphone co-developed by Google and Samsung Electronics. It is the third smartphone in the Google Nexus series, a family of Android consumer devices built by an original equipment manufacturer partner. The phone is the successor to Google's previous flagship phones, the Nexus One and Nexus S.
Can we infer the following?
Google's previous flagship phones were co-developed by Samsung

Available options:
 (A). Yes;
 (B). It's impossible to say;
 (C). No;
The answer is:
(B).