A difficult interview question

I left a position in the civil servant in September, I was there for just over a year. The job was not very challenging. I then worked for a charity for a month but it was just data entry. I am now working at a prison and I am not enjoying it as I am scared and it is a shift work. I now have an interview, What can I say when I am asked about my recent career history?

It depends exactly what you are asked and exactly what the facts surrounding those roles were.

Broadly, based on what you have said

The Civil Service role didn't offer you the career progression you were hoping for, and/or a very limited range of skills and exposure to different professional environments. Though if you left without a job, that can cast doubt - hopefully you will use that for a reference, which improves how it looks.

You did the data entry job just as an interim, while considering your options. Working in the charity sector was interesting/you felt worthwhile even if it was just a short project you helped with.

The prison - you aren't comfortable in the environment - it's a very specific environment to work in, and you don't fit.

If the job you are applying for can in any way seem to be a logical step on from any of those three previous roles, then you just focus on saying how this is the next step and where you were always looking to go, you were building experience.