Alphabet reports 17.8 percent rise in revenue

(Reuters) - Google parent Alphabet Inc reported a 17.8 percent rise in quarterly revenue on Monday, boosted by strong sales of advertising on mobile devices and YouTube. The company, announcing its first results under a new reporting structure aimed at improving transparency, said consolidated revenue jumped to $21.33 billion in the three months ended Dec. 31, from $18.10 billion a year earlier. Net income in the fourth quarter rose to $4.92 billion, or $7.06 per Class A and B share and Class C