[Grammar] London where he comes from or London from where he comes ?

[Dinusha]

1.He comes from London.
2.He goes to London.

If we use London as an antecedent in a noun clause.what are the correct noun clauses given below?

1.(a)London where he comes from.
(b)London from where he comes.
(c)London (that/which) he comes from.
(d)London from which he comes.


2.(a)London where he goes to.
(b)London to where he goes.
(c)London (that/which) he goes to.
(d)London to which he goes.

 

[Rover_KE]

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