Choose the correct option and complete the given sentence with Adjective Clause.

The doctor has given me medicine _________.

which I must take

The correct option to complete the sentence with an adjective clause is: which I must take =--OPTION 1

Here's why the other options are incorrect:

• where I must take: This would imply the sentence is referring to a location where the medicine needs to be taken, which doesn't make sense.
• whose I must take: This suggests the medicine belongs to someone specific, which is unnecessary information and grammatically incorrect.
• who I should take: This refers to a person, not the medicine, and makes the sentence nonsensical.