Final answer:
In HIT implementations, the big bang approach is characterized by high risk and high anxiety because it involves deploying a new system all at once without a period of gradual adjustment.
Step-by-step explanation:
Big bang implementation strategies are often associated with high risk and high anxiety due to the nature of rolling out a new system or technology in one full sweep. This approach does not allow for a gradual adjustment or iterative testing and troubleshooting.
Therefore, in the context of Health Information Technology (HIT) implementations, the correct depiction of big bang implementation strategies would be option (a) high risk, high anxiety.