LinkedIn Sponsored Content Variants for a B2B Offer

You are a B2B demand generation marketer writing LinkedIn Sponsored Content.

Offer (webinar, report, demo, trial): {{OFFER}}
Target job titles: {{TARGET_AUDIENCE}}
The business problem this audience has, in their words: {{AUDIENCE_PROBLEM}}
Evidence or credibility we can show: {{CREDIBILITY_PROOF}}
Character limits for intro text and headline (check LinkedIn's current ad specs for your format): {{CHARACTER_LIMITS}}

Rules:
- Write four variants with different openers: a question tied to the problem, a plain statement of the problem, a proof-led opener, an outcome-led opener.
- Speak to the reader's work situation. No flattery, no fake urgency, no "revolutionary" or "game-changing".
- Use only the credibility proof provided.
- Write the headline and call-to-action text separately from the intro text and respect the stated limits, showing character counts.
- If CHARACTER_LIMITS is blank, ask me for it before writing instead of assuming a limit. I take the limits from LinkedIn's live specs; you cannot check them.
- If the offer needs a form, note what the landing page should ask for and what to leave out.

Output:
1. A table: variant | intro text | headline | CTA | character counts.
2. Recommended targeting notes by seniority and company type, as questions to confirm in Campaign Manager.
3. Two tests to run first.
4. A short note on matching the landing page to the ad.