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

The correct option is but.

Detailed Explanation:

1. Understanding Conjunctions: Conjunctions are connecting words used to link words, phrases, or clauses together in a sentence.
2. The Role of "but": The word "but" is a coordinating conjunction used to connect two independent clauses (sentences) that express contrasting or opposing ideas. It joins them without changing the intended meaning of either statement, establishing a clear relationship of contrast between them.
3. Analyzing the Alternatives:
- and: Used to join similar ideas or add information, not to show contrast.
- even: Typically used as an adverb to highlight something unexpected, rather than as a coordinating conjunction.
- also: Used to add information (like "in addition"), but it is an adverb and cannot join two sentences without additional punctuation.
- when: A subordinating conjunction used to show time relationships, indicating when an action occurs.
Therefore, to connect two contrasting sentences smoothly, but is the correct grammatical choice.