Coimbra or more time in Lisbon ?
 

Good afternoon! Due to a scheduling mix-up of our lodgings in Lagos, I find myself in possession of one extra night in our itinerary that isn't accounted for, and I would appreciate your advice on where to spend it. Here's what we have lined up so far:
Lagos-4 nights
Evora-2 nights
Nazare-4 nights (with day trip/s to surrounding sites and cities)
? Coimbra or Lisbon
Lisbon-4 nights (with a day trip to Sintra)
The shortest amount of time we like to stay in one hotel is 2 nights. Here is what I'm trying to decide between:
A. Take one night from Nazare and add it to the extra night, giving us two nights in Coimbra. The only negative to this is one more hotel change and an extra 2-3 hours devoted to transportation. Coimbra sounds amazing, and I'd love to see it!
B. Add the extra night to Lisbon and use that extra day to take a day trip to Setubal
C. Add the extra night to Nazare and use that time to visit Caldas da Rainha

I am leaning towards choice A, but I would love to hear your thoughts on this matter. Thanks for listening!!