A.I. Explanation:

Option 1: "Lockdown is making go people tad-stir crazy."

Explanation: The text mentions that many people are going a tad stir-crazy due to the lockdown, so this statement is actually supported by the text. Therefore, it is not something the speaker did not say.

Option 2: "Prolonged social isolation for older is health equivalent of smoking 15 cigarettes a day."

Explanation: The text explicitly states that prolonged social isolation for those aged 50 and older is the health equivalent of smoking 15 cigarettes a day. This statement is directly mentioned in the passage, making it incorrect as an option for what the speaker did not say.

Option 3: "Lockdown is necessary to keep us safe."

Explanation: The speaker does not mention that the lockdown is necessary to keep us safe. While the text discusses the effects of lockdown and social isolation, it does not provide any justification for the necessity of the lockdown itself, making this option the correct answer.

Option 4: "Technology offer solutions both keep up connected."

Explanation: The text states that technology offers solutions to keep us connected, but it does not mention that technology is the only solution or that it is the primary focus. Therefore, while the statement is partially true, it does not accurately reflect what the speaker did not say.