The correct answer is option 'A' - "will". This is because the statement is expressing a personal determination or intention, which is more appropriate to be expressed using the modal verb "will".

Explanation:
In the given statement, the speaker is expressing their determination or intention to not let themselves become a slave to machines. This implies that they have control over their actions and decisions and they are determined to maintain that control.

The use of the modal verb "will" in this context indicates a strong personal determination or intention. It implies that the speaker is making a conscious decision to not allow themselves to be enslaved by machines. By using "will", the speaker is asserting their agency and stating that they have the power to resist becoming dependent on machines.

Using other modal verbs like "may" or "can" would not be appropriate in this context. "May" suggests a possibility or permission, which doesn't convey the speaker's determination. Similarly, "can" suggests ability or capability, but not necessarily a firm intention.

On the other hand, using "dared" or "canc" would not be grammatically correct in this sentence. "Dared" is the past tense of "dare" and does not fit the context of expressing a present intention. "Canc" is not a valid English word.

Therefore, the most suitable modal verb to express the speaker's determination or intention to not become a slave to machines is "will".