Select the most appropriate option to fill in the blank.
The meeting was postponed ______ the unexpected power outage.

Correct option is A

The correct option to fill in the blank is (a) due to.
Explanation: “Due to” is used to express the cause of something, and it is followed by a noun phrase (here, "the unexpected power outage").
Example: The delay was due to heavy rainfall.
Other options:
· (b) Because: Requires a clause (e.g., because it rained).
· (c) For: Indicates purpose or benefit, not reason.
· (d) Since: Indicates reason but used with a clause (e.g., since there was a power cut).
�� Grammar Tip: Use “due to + noun”; use “because/since + clause”.