The candidate spent a

[vipulgoyal]

The candidate spent a significant time in the South, preaching a strong message of family values, lest he lose the vote in those states.

preaching a strong message of family values, lest he lose
preached a strong message about family values, lest he loses
preaching a strong message for family values, instead of losing
preached a strong message of family values, unless he loses
preaching a strong message about family values, and he won't lose

A

[GMATGuruNY]

OA: The candidate spent a significant time in the South, preaching a strong message of family values, lest he lose the vote in those states.

Here, it is unclear whether the modifier in red serves to modify preaching (implying that the candidate was PREACHING because he did not want to lose the vote) or spent (implying that the candidate SPENT TIME IN THE SOUTH because he did not want to lose the vote).
The OA is not valid.
Ignore this SC.