Question

Select the correct relative pronoun to complete this sentence.

Alchemists​,​ _____ wanted to transform base metals into​ gold, were also among the first people to conduct laboratory​ experiments.
A.
whom
B.
which
C.
that
D.
who

Answer 1

The correct relative pronoun is 'who'.

Step-by-step explanation:

The correct relative pronoun to complete the sentence is who.

Relative pronouns are used to connect a dependent clause to a main clause and refer to a noun that came before. In this sentence, the relative pronoun refers to the noun 'alchemists'.

An example of the completed sentence is: 'Alchemists, who wanted to transform base metals into gold, were also among the first people to conduct laboratory experiments.'

Answer 2

The correct relative pronoun to complete this sentence.

Alchemists​,​ _____ wanted to transform base metals into​ gold, were also among the first people to conduct laboratory​ experiments is option D. WHO

It is a non-defining realtive clause. Non-defining realtive clauses add extra information to a sentence by defining the noun. That can be used as a replacement of which or who in defining relative clauses. But it is not correct to use THAT to replace shich /who in non defining realtive caluses