Find the correct option to connect the two sentences given above without changing the intended meaning.

The correct option is but.

The conjunction but is a coordinating conjunction used to connect two clauses or sentences that present contrasting or opposing ideas. By using but, we can join the sentences into a single, cohesive sentence while maintaining the relationship of contrast between them.

Here is a breakdown of why but is the appropriate connector compared to the other options:
1. but (Conjunction): Specifically used to introduce a statement that contrasts with or contradicts the previous statement.
2. and (Conjunction): Used to add information or connect similar, non-contrasting ideas.
3. even (Adverb): Used to emphasize something surprising, and cannot function on its own as a coordinating conjunction to connect two independent sentences.
4. also (Adverb): Used to add information (meaning 'in addition') rather than to show a contrast or act as a coordinating conjunction.

Thus, but is the correct option to connect the sentences without changing the intended contrasting meaning.