Which architect designed the Lenin Mausoleum on Red Square, initially as a wooden temporary structure in 1924 before rebuilding it in granite?

• A Konstantin Melnikov
• B Ivan Zholtovsky
• C Boris Iofan
• D Alexey Shchusev ✓

Shchusev completed the permanent stepped-pyramid mausoleum in 1930 using red granite, porphyry, and black labradorite.