You could try the word “apparent” - it’s a synonym to evident and definitely fits in the second blank. If all else fails, search up “synonyms to evident” and choose as you like. I hope this helps :)
The choices are:
short
medium
average
long
The answer is a long-term goal. They are both in a situation where they decided to be ready for having their family. Earning would take time. Being financially ready for a family would mean preparing for a house, savings for education, health, and different things. It would let them have a longer preparation to be ready.
