Final answer:
When one house of Congress alters a bill, a conference committee is convened to reconcile the differences, and the revised bill is voted on again by both chambers. If vetoed by the president, a two-thirds vote in Congress can override the veto.
therefore, option d is correct
Step-by-step explanation:
Whenever one house of Congress significantly alters a bill, a conference committee is formed to reconcile the different versions of the bill. This bipartite committee consists of members from both the House and Senate who work together to create a compromise bill that both chambers can accept without further amendments. Following this, the reconciled bill is sent to both houses for a final vote. If the president vetoes the bill, a two-thirds majority in both houses is required to override the veto and enact the bill into law.
the complete Question is given below:
Whenever one house of Congress significantly alters a bill:
a. the bill is nullified.
b. the chief justice determines the constitutionality of the changes.
c. the president vetoes the bill.
d. a conference committee is formed to reconcile the different versions of the bill.?