Read the given statements and decide which of the conclusions given in the options logically follow from the statements. Statements:
I. The security guards of the colony have increased vigilance during late night hours.
II. Incidents of petty thefts and crimes have decreased in the late-night hours.

From the statements given: The security guards of the colony have increased vigilance during late night hours. Incidents of petty thefts and crimes have reduced in the late night hours. Statement I is an action which was taken in order to reach to an effect and statement Il is the effect that was caused by the action taken such that when security guards of the colony increased vigilance during late night hours the effect of that was incidents of petty thefts and crimes have reduced in the late night hours. So, statement I is the likely cause and statement Il is its likely effect. Hence the correct answer is option (D).