The Big D.
(need your age to comment better but here goes a view)
Option 1.
If you are close to 65 = great option.
Option 1.
If you are not near 65 , is this 5,535 what you will get @ 65? or is it 5,535 + cpi after you retire?. If it is 5,535+ cpi , say in 25 years time it is very little.But would be good if you are close to retirement.
Option 1.
Since it is an active plan , you avoid most of the charges.
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Option 2.
Value today k28 , it takes circa k14 for every K1 pension you want @ 65.
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Given the (shuffle) and (fear) over Defined schemes caution is needed,
however the new EU rules will protect D B schemes to guaranteed 50% on them and company failing.
So @ worst Db looks better on the info you have given.