Hello! Sorry this is a little late, but hopefully it can help others who visit this question.
I believe the best answer to your question would be option four, determination.
For those who have the same question, but have different answer options, another correct to this question would be resolve.
I can confirm these answers are 100% correct.
Hope this helps, and have a great rest of your day! :)
To keep the population up
She looked at the real world and left the tower.
The most effective way to combine sentences (1) and (2) is definitely :William Shakespeare was born in 1564 in Stratford-upon-Avon, a town in England. This is the only sentence which both represents correct grammar and semantic structures. This sentence contains a complection of a direct object of the sentence as they bring one sense and can substitude each other. The structure of this sentence clearly shows that Stratford-upon-Avon is a a town in England that is totally correct. The second option lacks a comma, the next one contains improper use of participle phrase and the last one contains extra conjuction.