Q:

Arrange the following events in chronological order:

(a) Death of Sir Winston Churchill (b) Alaska became the 49th state of the USA (c) China and Pakistan signed the Treaty of Frontier (d) First Earth Satellite (Sputnik I) launched by the USA

• 1
  (a)(b)(c)(d)
• 2
  (d)(b)(c)(a)
• 3
  (b)(c)(a)(d)
• 4
  (c)(d)(b)(a)