In the following spelling question, choose the correctly spelt English word related to the past form of "throttle".

Introduction / Context:
This is another spelling recognition question. It focuses on the past tense form of the verb "throttle", which means to choke or to control the flow of something, especially in engines or in figurative expressions. Spelling questions like this strengthen your attention to detail and help you avoid mistakes in formal writing where incorrect forms can look unprofessional.

Given Data / Assumptions:

• The options are "Throtled", "Throttlede", "Throtlede", and "Throttled".
• The base verb is "throttle".
• We need the correct past tense form used in standard English.
• The question assumes knowledge of basic rules for forming the past tense of regular verbs ending in consonant vowel consonant combinations.

Concept / Approach:
The verb "throttle" ends with the pattern t t l e. To make the past tense of "throttle", we add d to form "throttled". We do not add extra e at the end beyond the one already present in "throttle", and we do not remove any of the consonants. Thus the correct spelling retains both t letters and the existing e, plus d for the past form, resulting in t h r o t t l e d. Any change in this sequence will produce a non standard or incorrect form.

Step-by-Step Solution:
Step 1: Write the base verb mentally as "throttle".Step 2: Add the regular past tense ending d, giving "throttled".Step 3: Examine the spellings in each option and compare them with t h r o t t l e d.Step 4: Identify that option D "Throttled" is the only one that matches this pattern exactly.Step 5: Reject all spellings that remove one t, move letters around, or add an unnecessary extra e at the end.

Verification / Alternative check:
Consulting a dictionary confirms that the correct past tense and past participle of "throttle" is "throttled". For example, "The pilot throttled back the engine" or "He throttled the opponent in anger" use this spelling. None of the other choices would appear in a standard English reference work, which confirms that they are only distractors created for the exam.

Why Other Options Are Wrong:

• Option A "Throtled" drops one of the t letters, which does not follow from the base form "throttle".
• Option B "Throttlede" wrongly adds an extra e after the d, creating an incorrect ending.
• Option C "Throtlede" both drops a t and rearranges the letters, resulting in a non existent word.

Common Pitfalls:
Candidates often forget the double consonants when forming past tense forms, especially with words like "travelled", "cancelled", and "throttled". A good strategy is to always start from the complete base spelling and then simply attach the suffix: d or ed, without deleting important consonants unless an established rule requires it. In this case, the base "throttle" already contains both t letters, so they must remain in the past tense form.

Final Answer:
The correctly spelt past tense form of "throttle" is "Throttled".