Lock set question - what are they for?

The 3 small barrels, from left to right

A: Sliding door
B: Ignition
C: ???

What is C for? Am I have campers block or am I missing something?

 

does one feplace the locking fuel cap? or is there a locking glove box option?

 

2x cab door
1 x fuel cap
1 x sliding door
1 x glove box
rear hatch
engine lid

 

c is the slider lock a is............glove box lock?

just looked at our set here

 

Many thanks Rich. That must be it.

 

I got this set plus a sliding door handle. Sooooo much easier having everything working from one key!!

 

c looks to be a late bay sliding door one, perhaps A is for a sliding door handle

 

c sliding door the other 2 are ignition and glove box i was told when spoke to someone from jk. but he wasnt sure eaither haha