Answer the Question on the Basis of the Following Table $\begin{array}{c}&&\text { Market Share of Firms in Industry }\end{array}$

Answer the question on the basis of the following table showing market shares of firms in hypothetical industries.Assume these are distinct industries with no buyer-seller relationships or competition among them. $\begin{array}{c}&&\text { Market Share of Firms in Industry }\end{array}$
$\begin{array}{c}\begin{array}{lll}\\Industry\\Alpha\\Beta\\Cappa\\Delta\\\end{array}\begin{array}{lll}\\1&2&3&4&5&6\\30&30&20&20&--&--\\80&10&5&3&1&1\\25&25&25&25&--&--\\20&20&20&20&10&10\end{array}\end{array}$ Refer to the table.A merger between Firm 1 in Alpha and Firm 2 in Delta would be a:

A) vertical merger.
B) horizontal merger.
C) conglomerate merger.
D) diagonal merger.