\[_{72}^{180}X\xrightarrow{2\alpha }\xrightarrow{\beta }\xrightarrow{\gamma }\,_{Z}^{A}{X}'\].\[Z\] and \[A\]are [DPMT 2005]

• A. 69, 172
• B. 172, 69
• C. 180, 70
• D. 182, 68