For capital letters, we can just add the ending -s, for example:
I got As in the final exam.
for lower-case letters, an apostrophe is used to avoid confusion:
In the multiple-choice exam all the correct answers happened to be a's! (as in: option a)
Answer:
C. Irony
Explanation:
According to the given sentence, the author talks about people thinking they are liberated because they can take their phone anywhere.
This statement brings a sense of irony because the speaker clearly believes that people are not liberated because they are in fact imprisoned by their attachment/addiction to their mobile phone.
Irony is defined as a situation where events are contrary to what one expects and can be amusing.
The rain water is stored in their thick stems for summer droughts
