An indicative mood is a verb form that makes a statement or asks a question. It either indicates or denies a fact. The verbs on the indicative mood are the basic mood of verbs in English.
It is used for factual statements. It´s one of the grammatical moods. The other two are imperative mood and subjunctive mood.
In the English language, the indicative mood refers to the grammatical mood that explains or indicates reality, this includes facts, affirmations and also opinions. Additionally, this mood differs from other moods because it focuses on assertions and reality rather than possibilities and hypothetical situations (subjunctive mood) or commands and requests (imperative mood). This means, from the options given the one that is in indicative mood is "I love taking tests" as this is an assertion that expresses an opinion and therefore is linked to reality or facts.
The answer is C, because the one noun is a singular while
the other one is paired with a plural, so the verb should be in plural form as
much as possible.