Which of the Following Are Common Shortcomings of Company Vision

Which of the following are common shortcomings of company vision statements?

A) Too broad,vague or incomplete,bland/uninspiring,not distinctive,and too reliant on superlatives
B) Unrealistic,unconventional,and unbusinesslike
C) Too specific,too inflexible,and can't be achieved in five years
D) Too broad,too narrow,and too risky
E) Not customer-driven,out-of-step with emerging technological trends,and too ambitious