Final answer:
The term 'vociferous' refers to being loud and forceful in expression; therefore, the correct answer is 4) Clamorous.
Step-by-step explanation:
The word 'vociferous' is an adjective that describes a manner of expressing oneself in a loud or forceful way. If someone is vociferous, they are clamorous and make their opinions known by being loud and insistent.
For instance, in the context of a noisy environment like a crowded roadway in Delhi as mentioned, a person might need to be vociferous to be heard over the din. Similarly, a vociferous bird, like the cartoon depicted in Figure 14.10, would be one that squawks or chirps very loudly, expressing itself in such a manner that it stands out even amidst the noise.
To answer the student's question directly, the meaning of 'vociferous' among the given options is 4) Clamorous, which means characterized by a loud and confused noise, especially when people are shouting vehemently.