Indian telco wanted to implement block chain and adopt the mandate by TRAI and be compliance ready based on monitoring commercial communications and to eliminate the spam communications. TechM created a POC with this next$-$gen technology and scaled it for PAN India. Which Digital theme is used to solve the business problem

$1.$ Strategy & Design

$2\mathrm{.}0$ Responsive Enterprise

$3\mathrm{.}0$ Into the Nxt

$4.$ None of the above