The Adjournment Motion is an extraordinary device available to members of the Lok Sabha (it is not used in the Rajya Sabha).
Purpose: Its primary objective is to draw the attention of the House to a recent, definite matter of urgent public importance. If admitted, it leads to the interruption of the normal business of the House.
Censure Element: Since it interrupts the government’s scheduled business, it is considered a tool of censure against the government. This is why it requires the support of at least 50 members to be admitted.
Distinction from Option (d): Option (d) describes the Adjournment of the House, which is a power exercised by the Presiding Officer to suspend a sitting due to lack of quorum or disorder. It is not a "motion" moved by a member.
Distinction from Option (c): Option (c) describes a Cut Motion, which is used during the discussion on the Budget.