[Grammar] What did you do in London

[ushakranthi]

What did you do in London?
a.We went shopping and spent a lot of money.
b.We went shopping and spent much money.
c.We went shopping and spent lots of money.
d.We went shopping and spent many money.

Option a is correct.

Am I right?

 

[bhaisahab]

What did you do in London?
a.We went shopping and spent a lot of money.
b.We went shopping and spent much money.
c.We went shopping and spent lots of money.
d.We went shopping and spent many money.

Option a is [STRIKE]true[/STRIKE] correct.

Am I right?

a and c are both possible.

 

[Chicken Sandwich]

a and c are both possible.

A very basic question, but why is, 'We went shopping and spent much money' not possible? I know that people usually use "a lot of" in positive statements, but I have found in the Longman Dictionary of Contemporary English:

Register Much sounds formal in positive statements. In everyday English, people usually say a lot of :
The dress cost a lot of money.
After a lot of thought I said yes.