Choose the most appropriate option to fill in the blank:I _____ the c…

The correct answer is Option (2) → have loved

Present perfect tense with "since":

• The present perfect (have/has + past participle) is used for an action or feeling that began in the past and continues up to now.
• Since + a point of time (since childhood, since 2015) marks the starting point, so it calls for a perfect tense.
• The form depends on the subject and the verb:
  • with the subject "I", the helping verb is have, not has;
  • love is a state verb, so it is normally used in the simple form, not the continuous.
• Clue word: "since". "Since childhood" gives the starting point of a liking that goes on up to now.
• Complete sentence: I have loved the combination of fruits and ice-creams since childhood.
  Example: She has lived in Pune since 2015.

Why the Other Options are Incorrect?

Option 1: will be loving — Incorrect. This is the future continuous, used for an action in progress at a future time; "since childhood" points to the past.
Example: This time tomorrow I will be travelling to Delhi.

Option 3: was loving — Incorrect.

• This is the past continuous, used for an action in progress at a past moment; it does not link the past with the present as "since" requires.
• The state verb "love" is not normally used in the continuous form.
  Example: She was reading when the phone rang.

Option 4: has been loving — Incorrect.

• "Has" goes with he, she or it, not with "I".
• The state verb "love" is not normally used in the continuous form.
  Example: He has been waiting for an hour.

Contrast: "since childhood" with the present perfect ("I have loved") links the past with now; the past continuous ("was loving") stays in the past, and the future continuous ("will be loving") looks ahead.