Choose the appropriate word from the given options to complete the fo…

The correct answer is Option (1) → Although

Complete sentence: Although she hated to go out for long walks, she went with her father just to please him. She hated long walks, yet she went with her father to please him. The two facts pull in opposite directions, so "although" joins them.

Option	Meaning and use	Example
(1) Although (answer)	Although joins two clauses that show contrast (concession): the main action happens in spite of what the "although" clause says.	Although it was raining, the match went on.
(2) Once	As a conjunction, once means as soon as or after. It shows time, not contrast, and "Once she hated to go out ..." does not fit the second clause.	Once the meeting ended, everyone left the hall.
(3) As	As introduces a reason ("because") or time ("while"). Her dislike of long walks cannot be the reason she went for one.	As it was late, we took a taxi home.
(4) Because	Because gives a reason. Hating long walks is not why she went with her father, so the sentence would contradict itself.	She stayed at home because she was unwell.