Martha is not receptive to new ideas and is unwilling to share ideas with her co-workers. this scenario best illustrates a lack of the element of trust.

OPENNESS.

This scenario clearly depicts a lack of the openness element of trust.

Elements of trust are openness; reliability; congruence and acceptance.

Openness can be defined as an act of having an accomodating attitude or opinion, i.e receptivity to new ideas, behaviors, cultures, peoples, environments, experiences, etc.,

This definition clearly goes against all that Martha is. Not receptive; unwilling to share ideas.