Which sentence uses

Which sentence uses the best verb mood to persuade readers?

This lecture could be fascinating, so you should go, because it might sell out.

This lecture will be fascinating, so get your tickets before they disappear!

This lecture would be fascinating if you went and listened, so go buy a ticket.

Do you think the lecture will be fascinating, and would you like to buy a ticket?

This lecture will be fascinating, so get your tickets before they disappear!

This verb mood is the best choice to persuade readers. The other options are not good choices because the used the verbs would, could and/or should. These verbs are not confident words. They allow for positive or negative outcomes. They indicate that something may or may not happen. In a persuasive text, there can be no doubting that something is good or bad, positive or negative. The speaker must be firm and resolute in order to convince the audience on a perspective, idea, or action.

I'd say "This lecture will be fascinating, so get your tickets before they disappear!", but do not quote me on that.