I'm not very clear on the last bit on the sentence, "which just one is the best". I believed it is comparable to the clause in "I'm likely to cover whatever they are", the buy of object and also the verb is reversed (I forgot what the grammatical phrase is), https://divorcelawyerindhakarachi83689.ampblogs.com/an-unbiased-view-of-family-lawyer-in-dha-karachi-pakistan-73211386