I would definitely go with B because a subjunctive is an realist mood (one that does not refer directly to what is necessarily real) – it is often contrasted with the indicative, which is a realist mood. Subjunctives occur most often, although not exclusively, in subordinate clauses, particularly that-clauses.
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Answer:
But indicates a cause /effect relationship.
The answer to your question is C) Our toothpaste is less expensive than the competitor, and it makes your teeth whiter too. Have a great day

<em>What is the object in the sentence’ The teacher picked up his bag and left the room’</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><u>Bag</u>
HOPE THIS HELPS^^