Option A is correct, Eka silicone -germanium, Eka aluminum -gallium, Eka boron -scandium.

**Explanation:**

**Eka Silicon:**

The concept of Eka Silicon was introduced by Dmitri Mendeleev in his periodic table. Eka Silicon refers to an element that was predicted to exist by Mendeleev based on the patterns he observed in the properties of known elements. Mendeleev named this predicted element as Eka Silicon because it was expected to have properties that were similar to silicon (Si).

**Germanium:**

The element that Mendeleev predicted as Eka Silicon is now known as Germanium (Ge). Germanium was discovered in 1886 by Clemens Winkler. It is a metalloid, meaning it has properties of both metals and nonmetals.

**Properties of Germanium:**

1. Atomic Number: Germanium has an atomic number of 32, which means it has 32 protons in its nucleus.
2. Atomic Mass: The atomic mass of Germanium is approximately 72.63 atomic mass units.
3. Group: In the periodic table, Germanium belongs to Group 14, along with carbon (C), silicon (Si), tin (Sn), and lead (Pb).
4. Period: It is in Period 4 of the periodic table.
5. Electronic Configuration: The electron configuration of Germanium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2.
6. Physical Properties: Germanium is a hard, brittle, and grayish-white metalloid. It has a high melting point, low boiling point, and low density.
7. Chemical Properties: Germanium reacts with oxygen to form germanium dioxide (GeO2). It also forms compounds with other elements, such as germanium sulfide (GeS2).
8. Applications: Germanium is used in various electronic devices such as transistors, diodes, and solar cells. It is also used as a catalyst in certain chemical reactions.

In conclusion, Eka Silicon, which was predicted by Mendeleev, corresponds to the element Germanium (Ge). Germanium shares several properties with silicon but also has its unique characteristics and applications.