1. The alveoli open into mammary tubules. 2. The tubules of each lobe join to form a lactiferous duct. 3. Several lactiferous ducts join to form a wider mammary ampulla 4. Mammary ampulla is connected to mammary duct. Regarding 1,2,3 and 4 :

Question

( a ) 2 is incorrect but 1,3 and 4 are correct
( b ) 3 and 4 are incorrect; 1 and 2 are correct
( c ) 1 is correct but 2,3 and 4 are incorrect
( d ) All are incorrect