A team mental model is a common understanding that members of a team share about how something works. For example, a team might have a common understanding of how to assemble a transistor radio. All of the following are TRUE about team mental models EXCEPT:

a. they may be assessed in terms of how accurate they are.
b. they may be assessed in terms of how much correspondence (agreement) there is among team members' mental models.
c. they are developed instantly, naturally, and are immediately compatible.
d. teams may have mental models about physical systems as well as social systems (such as how their group works).

The answer, in this case, would be option be option c. or they are developed instantly,naturally, and are immediately compatible.

Explanation:

Team mental models basically reflect how team work can be applied to conduct any particular function or task involving multiple number of people or groups.In this regard, the models suggest a common understanding, mindset,thought process,planning and co-ordination among the concerned team members to carry out any specific task or function.The models can be assessed based on the accuracy level of task or function performed and on the respective social and physical mechanisms on how a performing group or team might operate.However, the to develop the common characteristics and understanding among the group or team members require considerable time to develop and cannot be immediate or instant as it requires time for the respective team members to understand the mindset and modes of operation of each other.