Final answer:
The correct 5-letter word meaning to utter loudly from the given options is 'shout'. Yell and scream are also synonyms but 'shout' is the answer provided as option a.
Step-by-step explanation:
The 5-letter word that means to utter loudly can be shout, yell, or scream. All three words convey the action of using one's voice in a high volume.
Shouting involves raising one's voice forcefully to express something loudly. It can be used to get someone's attention, express excitement, or convey anger or frustration.
However, based on the options provided, the correct answer is a) Shout, which is commonly understood as a loud call or cry.
The word cry, while it can mean to shout or yell, is often associated with the act of shedding tears or sobbing.