The correct option is "glass ceiling" (note: its "glass" not "grass")
The glass ceiling effect is a term that refers to a metaphorical and invisible (just like glass) barrier that keeps women and other social minorities from being promoted and climbing up the corporate ladder to CEO and other top managerial jobs at organizations they work at.
Papal supremacy is the doctrine of the Roman Catholic Church that the Pope, by reason of his office as Vicar of Christ and as pastor of the entire Christian Church, has full, supreme, and universal power over the whole Church, a power which he can always exercise unhindered
I think is is b but I could be wrong.
Answer:
There are two fundamentally different types of experimental error. Statistical errors are random in nature: repeated measurements will differ from each other and from the true value by amounts which are not individually predictable, although the average behavior over many repetitions can be predicted.
