T-55, T-72 and T-90 battle are USSR/Russian origin battle tanks and are respectively based on first, second and third generation battle tank technologies.
Osteoporosis makes you more likely to loss bone mass and density resulting in fractures. Smoking cigarettes and drinking alcohol can lead to loss bone mass and density. Oseoporosis is more common in women than men.
A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.