Mowgli is a (1)____________ character from Rudyard Kipling's classic ‘The Jungle Book’. Raised by wolves in the Indian jungle, Mowgli (2)___________ thrilling adventures and forms friendships with various animals, like Bagheera the panther and Baloo the bear. Throughout the story, he (3)____________ the challenges of living among both humans and jungle creatures, all while learning essential life lessons. ‘The Jungle Book’ continues to (4)___________ readers of all ages with its (5)______________ portrayal of Mowgli's remarkable journey of self-discovery and the beauty of the natural world.

Select the most appropriate option to fill in blank number 3.

The correct answer is navigates.

Step-by-step Explanation:

Let's analyze the sentence containing blank number 3:
"Throughout the story, he (3)____________ the challenges of living among both humans and jungle creatures, all while learning essential life lessons."

We need to find the verb that best fits the context of dealing with "challenges":

1. Navigates: To navigate challenges means to find one's way through, manage, or deal with difficult situations successfully. This fits perfectly, as Mowgli has to find his way through the difficulties of living in two different worlds (human and jungle).
2. Customises: To customize means to modify something to suit individual preferences. One does not "customize" challenges in this context.
3. Procures: To procure means to obtain or get possession of something, especially with care or effort. One does not try to obtain or buy "challenges".
4. Coordinates: To coordinate means to organize different elements so as to enable them to work together effectively. While he interacts with many, "coordinate the challenges" is not semantically appropriate.

Therefore, navigates is the most appropriate option to fill in blank number 3.